Conjugation and declension of "coauthor" in English
Conjugation of the verb coauthor[kəuˈɔ:θə],
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 coauthoryou don't coauthor
he/she/it doesn't coauthor
we don't coauthor
you don't coauthor
they don't coauthor
Present Continuous
I am not coauthoringyou aren't coauthoring
he/she/it isn't coauthoring
we aren't coauthoring
you aren't coauthoring
they aren't coauthoring
Present Perfect
I haven't coauthoredyou haven't coauthored
he/she/it hasn't coauthored
we haven't coauthored
you haven't coauthored
they haven't coauthored
Present Perfect Continuous
I haven't been coauthoringyou haven't been coauthoring
he/she/it hasn't been coauthoring
we haven't been coauthoring
you haven't been coauthoring
they haven't been coauthoring
Past Indefinite
I didn't coauthoryou didn't coauthor
he/she/it didn't coauthor
we didn't coauthor
you didn't coauthor
they didn't coauthor
Past Continuous
I wasn't coauthoringyou weren't coauthoring
he/she/it wasn't coauthoring
we weren't coauthoring
you weren't coauthoring
they weren't coauthoring
Past Perfect
I hadn't coauthoredyou hadn't coauthored
he/she/it hadn't coauthored
we hadn't coauthored
you hadn't coauthored
they hadn't coauthored
Past Perfect Continuous
I hadn't been coauthoringyou hadn't been coauthoring
he/she/it hadn't been coauthoring
we hadn't been coauthoring
you hadn't been coauthoring
they hadn't been coauthoring
Future Indefinite
I shan't / won't coauthoryou won't coauthor
he/she/it won't coauthor
we shan't / won't coauthor
you won't coauthor
they won't coauthor
Future Continuous
I shan't / won't be coauthoringyou won't be coauthoring
he/she/it won't be coauthoring
we shan't / won't be coauthoring
you won't be coauthoring
they won't be coauthoring
Future Perfect
I shan't / won't have coauthoredyou won't have coauthored
he/she/it won't have coauthored
we shan't / won't have coauthored
you won't have coauthored
they won't have coauthored
Future Perfect Continuous
I shan't / won't have been coauthoringyou won't have been coauthoring
he/she/it won't have been coauthoring
we shan't / won't have been coauthoring
you won't have been coauthoring
they won't have been coauthoring
Conditional
Conditional Present
Conditional Present Continuous
Conditional Perfect
Conditional Perfect Continuous
Conditional
Conditional Present
I wouldn't coauthoryou wouldn't coauthor
he/she/it wouldn't coauthor
we wouldn't coauthor
you wouldn't coauthor
they wouldn't coauthor
Conditional Present Continuous
I wouldn't be coauthoringyou wouldn't be coauthoring
he/she/it wouldn't be coauthoring
we wouldn't be coauthoring
you wouldn't be coauthoring
they wouldn't be coauthoring
Conditional Perfect
I wouldn't have coauthoredyou wouldn't have coauthored
he/she/it wouldn't have coauthored
we wouldn't have coauthored
you wouldn't have coauthored
they wouldn't have coauthored
Conditional Perfect Continuous
I wouldn't have been coauthoringyou wouldn't have been coauthoring
he/she/it wouldn't have been coauthoring
we wouldn't have been coauthoring
you wouldn't have been coauthoring
they wouldn't have been coauthoring
Participles
Present
Past
Infinitives
Infinitives
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English verb conjugation tables
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