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Modal : no | may | might | can | could | shall | should | will | would | must | ought to

English verb conjugation TO CONTRIBUTE

Regular verb: contribute - contributed - contributed

Indicative

Present
don't I contribute?
don't you contribute?
doesn't she contribute?
don't we contribute?
don't you contribute?
don't they contribute?
Present continuous
am I not contributing?
aren't you contributing?
isn't she contributing?
aren't we contributing?
aren't you contributing?
aren't they contributing?
Preterite
didn't I contribute?
didn't you contribute?
didn't she contribute?
didn't we contribute?
didn't you contribute?
didn't they contribute?
Preterite continuous
wasn't I contributing?
weren't you contributing?
wasn't she contributing?
weren't we contributing?
weren't you contributing?
weren't they contributing?
Present perfect
haven't I contributed?
haven't you contributed?
hasn't she contributed?
haven't we contributed?
haven't you contributed?
haven't they contributed?
Present perfect continuous
haven't I been contributing?
haven't you been contributing?
hasn't she been contributing?
haven't we been contributing?
haven't you been contributing?
haven't they been contributing?
Pluperfect
hadn't I contributed?
hadn't you contributed?
hadn't she contributed?
hadn't we contributed?
hadn't you contributed?
hadn't they contributed?
Pluperfect continuous
hadn't I been contributing?
hadn't you been contributing?
hadn't she been contributing?
hadn't we been contributing?
hadn't you been contributing?
hadn't they been contributing?
Future
won't I contribute?
won't you contribute?
won't she contribute?
won't we contribute?
won't you contribute?
won't they contribute?
Future continuous
won't I be contributing?
won't you be contributing?
won't she be contributing?
won't we be contributing?
won't you be contributing?
won't they be contributing?
Future perfect
won't I have contributed?
won't you have contributed?
won't she have contributed?
won't we have contributed?
won't you have contributed?
won't they have contributed?
Future perfect continuous
won't I have been contributing?
won't you have been contributing?
won't she have been contributing?
won't we have been contributing?
won't you have been contributing?
won't they have been contributing?

Conditional

Present
wouldn't I contribute?
wouldn't you contribute?
wouldn't she contribute?
wouldn't we contribute?
wouldn't you contribute?
wouldn't they contribute?
Present continuous
wouldn't I be contributing?
wouldn't you be contributing?
wouldn't she be contributing?
wouldn't we be contributing?
wouldn't you be contributing?
wouldn't they be contributing?
Past
wouldn't I have contributed?
wouldn't you have contributed?
wouldn't she have contributed?
wouldn't we have contributed?
wouldn't you have contributed?
wouldn't they have contributed?
Past continuous
wouldn't I have been contributing?
wouldn't you have been contributing?
wouldn't she have been contributing?
wouldn't we have been contributing?
wouldn't you have been contributing?
wouldn't they have been contributing?

Imperative

Imperative
-
-
-
 
 
 

Infinitive

Infinitive
to contribute
 
 
 

Participle

Present
contributing
Past
contributed