Tabla de conjugación del verbo "To sing"
Present Simple (Presente Simple)
Present Simple Continuous (Presente Continuo)
Past Simple (Pasado Simple)
Past Continuous (Pasado Continuo)
Negative
He/She/It wasn't singing.
Future Simple (Futuro Simple)
Present Perfect Simple (Presente Perfecto)
Present Perfect Continuous (Presente Perfecto Continuo)
Affirmative
He/She/It's been singing.
Negative
You haven't been singing.
He/She/It hasn't been singing.
You haven't been singing.
They haven't been singing.
Interrogative
Has he/she/it been singing?
Past Perfect Simple (Pasado Perfecto)
Past Perfect Continuous (Pasado Perfecto Continuo)
Affirmative
He/She/It'd been singing.
Negative
He/She/It hadn't been singing.
They hadn't been singing.
Interrogative
Had he/she/it been singing?
Future Perfect (Futuro Perfecto)
Negative
He/She/It won't have sung.
Interrogative
Will he/she/it have sung?
Conditional (Condicional)
Conditional Perfect (Condicional Perfecto)
Negative
He/She/It wouldn't have sung.
Interrogative
Would he/she/it have sung?