Conjugate verb "complain" in English
Conjugation of the verb complain[kəmˈpleɪn],
regular 
Indicative
Present Indefinite
Present Continuous
Present Perfect
Present Perfect Continuous
Past Indefinite
Past Continuous
Past Perfect
Past Perfect Continuous
Future Indefinite
Future Continuous
Future Perfect
Future Perfect Continuous
Indicative
Present Indefinite
I don't complainyou don't complain
he/she/it doesn't complain
we don't complain
you don't complain
they don't complain
Present Continuous
I am not complainingyou aren't complaining
he/she/it isn't complaining
we aren't complaining
you aren't complaining
they aren't complaining
Present Perfect
I haven't complainedyou haven't complained
he/she/it hasn't complained
we haven't complained
you haven't complained
they haven't complained
Present Perfect Continuous
I haven't been complainingyou haven't been complaining
he/she/it hasn't been complaining
we haven't been complaining
you haven't been complaining
they haven't been complaining
Past Indefinite
I didn't complainyou didn't complain
he/she/it didn't complain
we didn't complain
you didn't complain
they didn't complain
Past Continuous
I wasn't complainingyou weren't complaining
he/she/it wasn't complaining
we weren't complaining
you weren't complaining
they weren't complaining
Past Perfect
I hadn't complainedyou hadn't complained
he/she/it hadn't complained
we hadn't complained
you hadn't complained
they hadn't complained
Past Perfect Continuous
I hadn't been complainingyou hadn't been complaining
he/she/it hadn't been complaining
we hadn't been complaining
you hadn't been complaining
they hadn't been complaining
Future Indefinite
I shan't / won't complainyou won't complain
he/she/it won't complain
we shan't / won't complain
you won't complain
they won't complain
Future Continuous
I shan't / won't be complainingyou won't be complaining
he/she/it won't be complaining
we shan't / won't be complaining
you won't be complaining
they won't be complaining
Future Perfect
I shan't / won't have complainedyou won't have complained
he/she/it won't have complained
we shan't / won't have complained
you won't have complained
they won't have complained
Future Perfect Continuous
I shan't / won't have been complainingyou won't have been complaining
he/she/it won't have been complaining
we shan't / won't have been complaining
you won't have been complaining
they won't have been complaining
Conditional
Conditional Present
Conditional Present Continuous
Conditional Perfect
Conditional Perfect Continuous
Conditional
Conditional Present
I wouldn't complainyou wouldn't complain
he/she/it wouldn't complain
we wouldn't complain
you wouldn't complain
they wouldn't complain
Conditional Present Continuous
I wouldn't be complainingyou wouldn't be complaining
he/she/it wouldn't be complaining
we wouldn't be complaining
you wouldn't be complaining
they wouldn't be complaining
Conditional Perfect
I wouldn't have complainedyou wouldn't have complained
he/she/it wouldn't have complained
we wouldn't have complained
you wouldn't have complained
they wouldn't have complained
Conditional Perfect Continuous
I wouldn't have been complainingyou wouldn't have been complaining
he/she/it wouldn't have been complaining
we wouldn't have been complaining
you wouldn't have been complaining
they wouldn't have been complaining
Participles
Present
Past
Infinitives
Infinitives
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Conjugation of English verbs
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