English verb conjugation
TO COMPLAIN

Regular verb: complain - complained - complained

Indicative

Present	Present continuous	Preterite	Preterite continuous
don't I complain? don't you complain? doesn't he complain? don't we complain? don't you complain? don't they complain?	am I not complaining? aren't you complaining? isn't he complaining? aren't we complaining? aren't you complaining? aren't they complaining?	didn't I complain? didn't you complain? didn't he complain? didn't we complain? didn't you complain? didn't they complain?	wasn't I complaining? weren't you complaining? wasn't he complaining? weren't we complaining? weren't you complaining? weren't they complaining?
Present perfect	Present perfect continuous	Pluperfect	Pluperfect continuous
haven't I complained? haven't you complained? hasn't he complained? haven't we complained? haven't you complained? haven't they complained?	haven't I been complaining? haven't you been complaining? hasn't he been complaining? haven't we been complaining? haven't you been complaining? haven't they been complaining?	hadn't I complained? hadn't you complained? hadn't he complained? hadn't we complained? hadn't you complained? hadn't they complained?	hadn't I been complaining? hadn't you been complaining? hadn't he been complaining? hadn't we been complaining? hadn't you been complaining? hadn't they been complaining?
Future	Future continuous	Future perfect	Future perfect continuous
won't I complain? won't you complain? won't he complain? won't we complain? won't you complain? won't they complain?	won't I be complaining? won't you be complaining? won't he be complaining? won't we be complaining? won't you be complaining? won't they be complaining?	won't I have complained? won't you have complained? won't he have complained? won't we have complained? won't you have complained? won't they have complained?	won't I have been complaining? won't you have been complaining? won't he have been complaining? won't we have been complaining? won't you have been complaining? won't they have been complaining?

Conditional

Present	Present continuous	Past	Past continuous
wouldn't I complain? wouldn't you complain? wouldn't he complain? wouldn't we complain? wouldn't you complain? wouldn't they complain?	wouldn't I be complaining? wouldn't you be complaining? wouldn't he be complaining? wouldn't we be complaining? wouldn't you be complaining? wouldn't they be complaining?	wouldn't I have complained? wouldn't you have complained? wouldn't he have complained? wouldn't we have complained? wouldn't you have complained? wouldn't they have complained?	wouldn't I have been complaining? wouldn't you have been complaining? wouldn't he have been complaining? wouldn't we have been complaining? wouldn't you have been complaining? wouldn't they have been complaining?

Infinitive

Imperative

Infinitive		Imperative
to complain		- - -

Participle

Present	Past
complaining	complained