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Tabla de conjugación del verbo "To understand"
 
    
	
    
        
	        
	            Present Simple (Presente Simple)  
	         
	        
	            
		            
	            
		            
		                Negative
                    
		                
			                
		                
			                
		                
			                
		                
			                
			                    
			                    
			                         
			                    
			                    He/She/It does not understand. 
			                 
		                
			                
		                
			                
		                        
		             
	            
		            
		                Interrogative
                    
		                
			                
		                
			                
		                
			                
		                
			                
			                    
			                    
			                         
			                    
			                    Does he/she/it understand? 
			                 
		                
			                
		                
			                
		                        
		             
	            
	         
	        
	        
		
    
        
	        
	            Present Simple Continuous (Presente Continuo)  
	         
	        
	            
		            
		                Affirmative
                    
		                
			                
		                
			                
		                
			                
		                
			                
			                    
			                    
			                         
			                    
			                    He/She/It is understanding. 
			                 
		                
			                
		                
			                
		                        
		             
	            
		            
		                Negative
                    
		                
			                
		                
			                
			                    
			                    
			                         
			                    
			                    You are not understanding. 
			                 
		                
			                
			                    
			                    
			                         
			                    
			                    We are not understanding. 
			                 
		                
			                
			                    
			                    
			                         
			                    
			                    He/She/It is not understanding. 
			                 
		                
			                
			                    
			                    
			                         
			                    
			                    You are not understanding. 
			                 
		                
			                
			                    
			                    
			                         
			                    
			                    They are not understanding. 
			                 
		                        
		             
	            
		            
		                Interrogative
                    
		                
			                
		                
			                
		                
			                
		                
			                
			                    
			                    
			                         
			                    
			                    Is he/she/it understanding? 
			                 
		                
			                
		                
			                
		                        
		             
	            
	         
	        
	        
		
    
        
	        
	            Past Simple (Pasado Simple)  
	         
	        
	            
		            
	            
		            
		                Negative
                    
		                
			                
		                
			                
		                
			                
		                
			                
			                    
			                    
			                         
			                    
			                    He/She/It did not understand. 
			                 
		                
			                
		                
			                
		                        
		             
	            
		            
		                Interrogative
                    
		                
			                
		                
			                
		                
			                
		                
			                
			                    
			                    
			                         
			                    
			                    Did he/she/it understand? 
			                 
		                
			                
		                
			                
		                        
		             
	            
	         
	        
	        
		
    
        
	        
	            Past Continuous (Pasado Continuo)  
	         
	        
	            
		            
		                Affirmative
                    
		                
			                
		                
			                
		                
			                
		                
			                
			                    
			                    
			                         
			                    
			                    He/She/It was understanding. 
			                 
		                
			                
		                
			                
		                        
		             
	            
		            
		                Negative
                    
		                
			                
		                
			                
			                    
			                    
			                         
			                    
			                    You were not understanding. 
			                 
		                
			                
			                    
			                    
			                         
			                    
			                    We were not understanding. 
			                 
		                
			                
			                    
			                    
			                         
			                    
			                    He/She/It was not understanding. 
			                 
		                
			                
			                    
			                    
			                         
			                    
			                    You were not understanding. 
			                 
		                
			                
			                    
			                    
			                         
			                    
			                    They were not understanding. 
			                 
		                        
		             
	            
		            
		                Interrogative
                    
		                
			                
		                
			                
		                
			                
		                
			                
			                    
			                    
			                         
			                    
			                    Was he/she/it understanding? 
			                 
		                
			                
		                
			                
		                        
		             
	            
	         
	        
	        
		
    
        
	        
	            Future Simple (Futuro Simple)  
	         
	        
	            
		            
		                Affirmative
                    
		                
			                
		                
			                
		                
			                
		                
			                
			                    
			                    
			                         
			                    
			                    He/She/It will understand. 
			                 
		                
			                
		                
			                
		                        
		             
	            
		            
		                Negative
                    
		                
			                
		                
			                
		                
			                
		                
			                
			                    
			                    
			                         
			                    
			                    He/She/It will not understand. 
			                 
		                
			                
		                
			                
			                    
			                    
			                         
			                    
			                    They will not understand. 
			                 
		                        
		             
	            
		            
		                Interrogative
                    
		                
			                
		                
			                
		                
			                
		                
			                
			                    
			                    
			                         
			                    
			                    Will he/she/it understand? 
			                 
		                
			                
		                
			                
		                        
		             
	            
	         
	        
	        
		
    
        
	        
	            Present Perfect Simple (Presente Perfecto)  
	         
	        
	            
		            
		                Affirmative
                    
		                
			                
		                
			                
		                
			                
		                
			                
			                    
			                    
			                         
			                    
			                    He/She/It has understood. 
			                 
		                
			                
		                
			                
		                        
		             
	            
		            
		                Negative
                    
		                
			                
		                
			                
		                
			                
		                
			                
			                    
			                    
			                         
			                    
			                    He/She/It has not understood. 
			                 
		                
			                
		                
			                
			                    
			                    
			                         
			                    
			                    They have not understood. 
			                 
		                        
		             
	            
		            
		                Interrogative
                    
		                
			                
		                
			                
		                
			                
		                
			                
			                    
			                    
			                         
			                    
			                    Has he/she/it understood? 
			                 
		                
			                
		                
			                
		                        
		             
	            
	         
	        
	        
		
    
        
	        
	            Present Perfect Continuous (Presente Perfecto Continuo)  
	         
	        
	            
		            
		                Affirmative
                    
		                
			                
			                    
			                    
			                         
			                    
			                    I have been understanding. 
			                 
		                
			                
			                    
			                    
			                         
			                    
			                    You have been understanding. 
			                 
		                
			                
			                    
			                    
			                         
			                    
			                    We have been understanding. 
			                 
		                
			                
			                    
			                    
			                         
			                    
			                    He/She/It has been understanding. 
			                 
		                
			                
			                    
			                    
			                         
			                    
			                    You have been understanding. 
			                 
		                
			                
			                    
			                    
			                         
			                    
			                    They have been understanding. 
			                 
		                        
		             
	            
		            
		                Negative
                    
		                
			                
			                    
			                    
			                         
			                    
			                    I have not been understanding. 
			                 
		                
			                
			                    
			                    
			                         
			                    
			                    You have not been understanding. 
			                 
		                
			                
			                    
			                    
			                         
			                    
			                    We have not been understanding. 
			                 
		                
			                
			                    
			                    
			                         
			                    
			                    He/She/It has not been understanding. 
			                 
		                
			                
			                    
			                    
			                         
			                    
			                    You have not been understanding. 
			                 
		                
			                
			                    
			                    
			                         
			                    
			                    They have not been understanding. 
			                 
		                        
		             
	            
		            
		                Interrogative
                    
		                
			                
			                    
			                    
			                         
			                    
			                    Have I been understanding? 
			                 
		                
			                
			                    
			                    
			                         
			                    
			                    Have you been understanding? 
			                 
		                
			                
			                    
			                    
			                         
			                    
			                    Have we been understanding? 
			                 
		                
			                
			                    
			                    
			                         
			                    
			                    Has he/she/it been understanding? 
			                 
		                
			                
			                    
			                    
			                         
			                    
			                    Have you been understanding? 
			                 
		                
			                
			                    
			                    
			                         
			                    
			                    Have they been understanding? 
			                 
		                        
		             
	            
	         
	        
	        
		
    
        
	        
	            Past Perfect Simple (Pasado Perfecto)  
	         
	        
	            
		            
		                Affirmative
                    
		                
			                
		                
			                
		                
			                
		                
			                
			                    
			                    
			                         
			                    
			                    He/She/It had understood. 
			                 
		                
			                
		                
			                
		                        
		             
	            
		            
		                Negative
                    
		                
			                
		                
			                
		                
			                
		                
			                
			                    
			                    
			                         
			                    
			                    He/She/It had not understood. 
			                 
		                
			                
		                
			                
		                        
		             
	            
		            
		                Interrogative
                    
		                
			                
		                
			                
		                
			                
		                
			                
			                    
			                    
			                         
			                    
			                    Had he/she/it understood? 
			                 
		                
			                
		                
			                
		                        
		             
	            
	         
	        
	        
		
    
        
	        
	            Past Perfect Continuous (Pasado Perfecto Continuo)  
	         
	        
	            
		            
		                Affirmative
                    
		                
			                
			                    
			                    
			                         
			                    
			                    I had been understanding. 
			                 
		                
			                
			                    
			                    
			                         
			                    
			                    You had been understanding. 
			                 
		                
			                
			                    
			                    
			                         
			                    
			                    We had been understanding. 
			                 
		                
			                
			                    
			                    
			                         
			                    
			                    He/She/It had been understanding. 
			                 
		                
			                
			                    
			                    
			                         
			                    
			                    You had been understanding. 
			                 
		                
			                
			                    
			                    
			                         
			                    
			                    They had been understanding. 
			                 
		                        
		             
	            
		            
		                Negative
                    
		                
			                
			                    
			                    
			                         
			                    
			                    I had not been understanding. 
			                 
		                
			                
			                    
			                    
			                         
			                    
			                    You had not been understanding. 
			                 
		                
			                
			                    
			                    
			                         
			                    
			                    We had not been understanding. 
			                 
		                
			                
			                    
			                    
			                         
			                    
			                    He/She/It had not been understanding. 
			                 
		                
			                
			                    
			                    
			                         
			                    
			                    You had not been understanding. 
			                 
		                
			                
			                    
			                    
			                         
			                    
			                    They had not been understanding. 
			                 
		                        
		             
	            
		            
		                Interrogative
                    
		                
			                
			                    
			                    
			                         
			                    
			                    Had I been understanding? 
			                 
		                
			                
			                    
			                    
			                         
			                    
			                    Had you been understanding? 
			                 
		                
			                
			                    
			                    
			                         
			                    
			                    Had we been understanding? 
			                 
		                
			                
			                    
			                    
			                         
			                    
			                    Had he/she/it been understanding? 
			                 
		                
			                
			                    
			                    
			                         
			                    
			                    Had you been understanding? 
			                 
		                
			                
			                    
			                    
			                         
			                    
			                    Had they been understanding? 
			                 
		                        
		             
	            
	         
	        
	        
		
    
        
	        
	            Future Perfect (Futuro Perfecto)  
	         
	        
	            
		            
		                Affirmative
                    
		                
			                
		                
			                
			                    
			                    
			                         
			                    
			                    You will have understood. 
			                 
		                
			                
		                
			                
			                    
			                    
			                         
			                    
			                    He/She/It will have understood. 
			                 
		                
			                
			                    
			                    
			                         
			                    
			                    You will have understood. 
			                 
		                
			                
			                    
			                    
			                         
			                    
			                    They will have understood. 
			                 
		                        
		             
	            
		            
		                Negative
                    
		                
			                
			                    
			                    
			                         
			                    
			                    I will not have understood. 
			                 
		                
			                
			                    
			                    
			                         
			                    
			                    You will not have understood. 
			                 
		                
			                
			                    
			                    
			                         
			                    
			                    We will not have understood. 
			                 
		                
			                
			                    
			                    
			                         
			                    
			                    He/She/It will not have understood. 
			                 
		                
			                
			                    
			                    
			                         
			                    
			                    You will not have understood. 
			                 
		                
			                
			                    
			                    
			                         
			                    
			                    They will not have understood. 
			                 
		                        
		             
	            
		            
		                Interrogative
                    
		                
			                
		                
			                
			                    
			                    
			                         
			                    
			                    Will you have understood? 
			                 
		                
			                
		                
			                
			                    
			                    
			                         
			                    
			                    Will he/she/it have understood? 
			                 
		                
			                
			                    
			                    
			                         
			                    
			                    Will you have understood? 
			                 
		                
			                
			                    
			                    
			                         
			                    
			                    Will they have understood? 
			                 
		                        
		             
	            
	         
	        
	        
		
    
        
	        
	            Conditional (Condicional)  
	         
	        
	            
		            
		                Affirmative
                    
		                
			                
		                
			                
		                
			                
		                
			                
			                    
			                    
			                         
			                    
			                    He/She/It would understand. 
			                 
		                
			                
		                
			                
		                        
		             
	            
		            
		                Negative
                    
		                
			                
		                
			                
			                    
			                    
			                         
			                    
			                    You would not understand. 
			                 
		                
			                
		                
			                
			                    
			                    
			                         
			                    
			                    He/She/It would not understand. 
			                 
		                
			                
			                    
			                    
			                         
			                    
			                    You would not understand. 
			                 
		                
			                
			                    
			                    
			                         
			                    
			                    They would not understand. 
			                 
		                        
		             
	            
		            
		                Interrogative
                    
		                
			                
		                
			                
		                
			                
		                
			                
			                    
			                    
			                         
			                    
			                    Would he/she/it understand? 
			                 
		                
			                
		                
			                
		                        
		             
	            
	         
	        
	        
		
    
        
	        
	            Conditional Perfect (Condicional Perfecto)  
	         
	        
	            
		            
		                Affirmative
                    
		                
			                
		                
			                
			                    
			                    
			                         
			                    
			                    You would have understood. 
			                 
		                
			                
			                    
			                    
			                         
			                    
			                    We would have understood. 
			                 
		                
			                
			                    
			                    
			                         
			                    
			                    He/She/It would have understood. 
			                 
		                
			                
			                    
			                    
			                         
			                    
			                    You would have understood. 
			                 
		                
			                
			                    
			                    
			                         
			                    
			                    They would have understood. 
			                 
		                        
		             
	            
		            
		                Negative
                    
		                
			                
			                    
			                    
			                         
			                    
			                    I would not have understood. 
			                 
		                
			                
			                    
			                    
			                         
			                    
			                    You would not have understood. 
			                 
		                
			                
			                    
			                    
			                         
			                    
			                    We would not have understood. 
			                 
		                
			                
			                    
			                    
			                         
			                    
			                    He/She/It would not have understood. 
			                 
		                
			                
			                    
			                    
			                         
			                    
			                    You would not have understood. 
			                 
		                
			                
			                    
			                    
			                         
			                    
			                    They would not have understood. 
			                 
		                        
		             
	            
		            
		                Interrogative
                    
		                
			                
		                
			                
			                    
			                    
			                         
			                    
			                    Would you have understood? 
			                 
		                
			                
			                    
			                    
			                         
			                    
			                    Would we have understood? 
			                 
		                
			                
			                    
			                    
			                         
			                    
			                    Would he/she/it have understood? 
			                 
		                
			                
			                    
			                    
			                         
			                    
			                    Would you have understood? 
			                 
		                
			                
			                    
			                    
			                         
			                    
			                    Would they have understood?