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    Learn Regular verbs Contribute
Choose category
Conjugate
Infinitive
contribute
Past simple
contributed
Past participle
contributed
Gerund
contributing
Conjugation of verb "To contribute"
Present Simple
Affirmative
I contribute.
You contribute.
We contribute.
He/She/It contributes.
You contribute.
They contribute.
Negative
I do not contribute.
You do not contribute.
We do not contribute.
He/She/It does not contribute.
You do not contribute.
They do not contribute.
Interrogative
Do I contribute?
Do you contribute?
Do we contribute?
Does he/she/it contribute?
Do you contribute?
Do they contribute?


Present Simple Continuous
Affirmative
I am contributing.
You are contributing.
We are contributing.
He/She/It is contributing.
You are contributing.
They are contributing.
Negative
I am not contributing.
You are not contributing.
We are not contributing.
He/She/It is not contributing.
You are not contributing.
They are not contributing.
Interrogative
Am I contributing?
Are you contributing?
Are we contributing?
Is he/she/it contributing?
Are you contributing?
Are they contributing?


Past Simple
Affirmative
I contributed.
You contributed.
We contributed.
He/She/It contributed.
You contributed.
They contributed.
Negative
I did not contribute.
You did not contribute.
We did not contribute.
He/She/It did not contribute.
You did not contribute.
They did not contribute.
Interrogative
Did I contribute?
Did you contribute?
Did we contribute?
Did he/she/it contribute?
Did you contribute?
Did they contribute?


Past Continuous
Affirmative
I was contributing.
You were contributing.
We were contributing.
He/She/It was contributing.
You were contributing.
They were contributing.
Negative
I was not contributing.
You were not contributing.
We were not contributing.
He/She/It was not contributing.
You were not contributing.
They were not contributing.
Interrogative
Was I contributing?
Were you contributing?
Were we contributing?
Was he/she/it contributing?
Were you contributing?
Were they contributing?


Future Simple
Affirmative
I will contribute.
You will contribute.
We will contribute.
He/She/It will contribute.
You will contribute.
They will contribute.
Negative
I will not contribute.
You will not contribute.
We will not contribute.
He/She/It will not contribute.
You will not contribute.
They will not contribute.
Interrogative
Will I contribute?
Will you contribute?
Will we contribute?
Will he/she/it contribute?
Will you contribute?
Will they contribute?


Present Perfect Simple
Affirmative
I have contributed.
You have contributed.
We have contributed.
He/She/It has contributed.
You have contributed.
They have contributed.
Negative
I have not contributed.
You have not contributed.
We have not contributed.
He/She/It has not contributed.
You have not contributed.
They have not contributed.
Interrogative
Have I contributed?
Have you contributed?
Have we contributed?
Has he/she/it contributed?
Have you contributed?
Have they contributed?


Present Perfect Continuous
Affirmative
I have been contributing.
You have been contributing.
We have been contributing.
He/She/It has been contributing.
You have been contributing.
They have been contributing.
Negative
I have not been contributing.
You have not been contributing.
We have not been contributing.
He/She/It has not been contributing.
You have not been contributing.
They have not been contributing.
Interrogative
Have I been contributing?
Have you been contributing?
Have we been contributing?
Has he/she/it been contributing?
Have you been contributing?
Have they been contributing?


Past Perfect Simple
Affirmative
I had contributed.
You had contributed.
We had contributed.
He/She/It had contributed.
You had contributed.
They had contributed.
Negative
I had not contributed.
You had not contributed.
We had not contributed.
He/She/It had not contributed.
You had not contributed.
They had not contributed.
Interrogative
Had I contributed?
Had you contributed?
Had we contributed?
Had he/she/it contributed?
Had you contributed?
Had they contributed?


Past Perfect Continuous
Affirmative
I had been contributing.
You had been contributing.
We had been contributing.
He/She/It had been contributing.
You had been contributing.
They had been contributing.
Negative
I had not been contributing.
You had not been contributing.
We had not been contributing.
He/She/It had not been contributing.
You had not been contributing.
They had not been contributing.
Interrogative
Had I been contributing?
Had you been contributing?
Had we been contributing?
Had he/she/it been contributing?
Had you been contributing?
Had they been contributing?


Future Perfect
Affirmative
I will have contributed.
You will have contributed.
We will have contributed.
He/She/It will have contributed.
You will have contributed.
They will have contributed.
Negative
I will not have contributed.
You will not have contributed.
We will not have contributed.
He/She/It will not have contributed.
You will not have contributed.
They will not have contributed.
Interrogative
Will I have contributed?
Will you have contributed?
Will we have contributed?
Will he/she/it have contributed?
Will you have contributed?
Will they have contributed?


Conditional
Affirmative
I would contribute.
You would contribute.
We would contribute.
He/She/It would contribute.
You would contribute.
They would contribute.
Negative
I would not contribute.
You would not contribute.
We would not contribute.
He/She/It would not contribute.
You would not contribute.
They would not contribute.
Interrogative
Would I contribute?
Would you contribute?
Would we contribute?
Would he/she/it contribute?
Would you contribute?
Would they contribute?


Conditional Perfect
Affirmative
I would have contributed.
You would have contributed.
We would have contributed.
He/She/It would have contributed.
You would have contributed.
They would have contributed.
Negative
I would not have contributed.
You would not have contributed.
We would not have contributed.
He/She/It would not have contributed.
You would not have contributed.
They would not have contributed.
Interrogative
Would I have contributed?
Would you have contributed?
Would we have contributed?
Would he/she/it have contributed?
Would you have contributed?
Would they have contributed?