Welcome to the conjugation section for the English verb complain. Here you will find the complete conjugation of this verb in all its tenses and modes. We also offer usage examples for each verb form and mode, so that you can better understand how complain is used in different contexts.
indicative
present
i complainyou complainhe/she/it complainswe complainyou complainthey complainpreterite
i complainedyou complainedhe/she/it complainedwe complainedyou complainedthey complainedpresent continuous
i am complainingyou are complaininghe/she/it is complainingwe are complainingyou are complainingthey are complainingpresent perfect
i have complainedyou have complainedhe/she/it has complainedwe have complainedyou have complainedthey have complainedfuture
i will complainyou will complainhe/she/it will complainwe will complainyou will complainthey will complainfuture perfect
i will have complainedyou will have complainedhe/she/it will have complainedwe will have complainedyou will have complainedthey will have complainedpast continous
i was complainingyou were complaininghe/she/it was complainingwe were complainingyou were complainingthey were complainingpast perfect
i had complainedyou had complainedhe/she/it had complainedwe had complainedyou had complainedthey had complainedfuture continuous
i will be complainingyou will be complaininghe/she/it will be complainingwe will be complainingyou will be complainingthey will be complainingpresent perfect continuous
i have been complainingyou have been complaininghe/she/it has been complainingwe have been complainingyou have been complainingthey have been complainingpast perfect continuous
i had been complainingyou had been complaininghe/she/it had been complainingwe had been complainingyou had been complainingthey had been complainingfuture perfect continuous
i will have been complainingyou will have been complaininghe/she/it will have been complainingwe will have been complainingyou will have been complainingthey will have been complainingparticiple
imperative
complainlet's complaincomplainpresent
complainingpast
complainedinfinitive
to complainperfect participle
having complained
The verb complain is a fundamental part of the English language and it is important to know its conjugation in order to use it correctly in your conversations, writing, and other contexts. That's why we invite you to explore this section and learn more about the conjugation of complain. We hope this tool will be useful in your learning of English!