Welcome to the conjugation section for the English verb ascertain. 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 ascertain is used in different contexts.
indicative
present
i ascertainyou ascertainhe/she/it ascertainswe ascertainyou ascertainthey ascertainpreterite
i ascertainedyou ascertainedhe/she/it ascertainedwe ascertainedyou ascertainedthey ascertainedpresent continuous
i am ascertainingyou are ascertaininghe/she/it is ascertainingwe are ascertainingyou are ascertainingthey are ascertainingpresent perfect
i have ascertainedyou have ascertainedhe/she/it has ascertainedwe have ascertainedyou have ascertainedthey have ascertainedfuture
i will ascertainyou will ascertainhe/she/it will ascertainwe will ascertainyou will ascertainthey will ascertainfuture perfect
i will have ascertainedyou will have ascertainedhe/she/it will have ascertainedwe will have ascertainedyou will have ascertainedthey will have ascertainedpast continous
i was ascertainingyou were ascertaininghe/she/it was ascertainingwe were ascertainingyou were ascertainingthey were ascertainingpast perfect
i had ascertainedyou had ascertainedhe/she/it had ascertainedwe had ascertainedyou had ascertainedthey had ascertainedfuture continuous
i will be ascertainingyou will be ascertaininghe/she/it will be ascertainingwe will be ascertainingyou will be ascertainingthey will be ascertainingpresent perfect continuous
i have been ascertainingyou have been ascertaininghe/she/it has been ascertainingwe have been ascertainingyou have been ascertainingthey have been ascertainingpast perfect continuous
i had been ascertainingyou had been ascertaininghe/she/it had been ascertainingwe had been ascertainingyou had been ascertainingthey had been ascertainingfuture perfect continuous
i will have been ascertainingyou will have been ascertaininghe/she/it will have been ascertainingwe will have been ascertainingyou will have been ascertainingthey will have been ascertainingparticiple
imperative
ascertainlet's ascertainascertainpresent
ascertainingpast
ascertainedinfinitive
to ascertainperfect participle
having ascertained
The verb ascertain 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 ascertain. We hope this tool will be useful in your learning of English!