English verb conjugation
TO CONTRIBUTE

Regular verb: contribute - contributed - contributed

Indicative

Present	Present continuous	Preterite	Preterite continuous
do I contribute? do you contribute? does he contribute? do we contribute? do you contribute? do they contribute?	am I contributing? are you contributing? is he contributing? are we contributing? are you contributing? are they contributing?	did I contribute? did you contribute? did he contribute? did we contribute? did you contribute? did they contribute?	was I contributing? were you contributing? was he contributing? were we contributing? were you contributing? were they contributing?
Present perfect	Present perfect continuous	Pluperfect	Pluperfect continuous
have I contributed? have you contributed? has he contributed? have we contributed? have you contributed? have they contributed?	have I been contributing? have you been contributing? has he been contributing? have we been contributing? have you been contributing? have they been contributing?	had I contributed? had you contributed? had he contributed? had we contributed? had you contributed? had they contributed?	had I been contributing? had you been contributing? had he been contributing? had we been contributing? had you been contributing? had they been contributing?
Future	Future continuous	Future perfect	Future perfect continuous
will I contribute? will you contribute? will he contribute? will we contribute? will you contribute? will they contribute?	will I be contributing? will you be contributing? will he be contributing? will we be contributing? will you be contributing? will they be contributing?	will I have contributed? will you have contributed? will he have contributed? will we have contributed? will you have contributed? will they have contributed?	will I have been contributing? will you have been contributing? will he have been contributing? will we have been contributing? will you have been contributing? will they have been contributing?

Conditional

Present	Present continuous	Past	Past continuous
would I contribute? would you contribute? would he contribute? would we contribute? would you contribute? would they contribute?	would I be contributing? would you be contributing? would he be contributing? would we be contributing? would you be contributing? would they be contributing?	would I have contributed? would you have contributed? would he have contributed? would we have contributed? would you have contributed? would they have contributed?	would I have been contributing? would you have been contributing? would he have been contributing? would we have been contributing? would you have been contributing? would they have been contributing?

Infinitive

Imperative

Infinitive		Imperative
to contribute		- - -

Participle

Present	Past
contributing	contributed