English verb conjugation
TO COMPLAIN

Regular verb: complain - complained - complained

Indicative

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

Conditional

Present	Present continuous	Past	Past continuous
would I complain? would you complain? would he complain? would we complain? would you complain? would they complain?	would I be complaining? would you be complaining? would he be complaining? would we be complaining? would you be complaining? would they be complaining?	would I have complained? would you have complained? would he have complained? would we have complained? would you have complained? would they have complained?	would I have been complaining? would you have been complaining? would he have been complaining? would we have been complaining? would you have been complaining? would they have been complaining?

Infinitive

Imperative

Infinitive		Imperative
to complain		- - -

Participle

Present	Past
complaining	complained