co-author: verb conjugation and noun forms

Singular and plural for co-author     

Singular
Plural
Singular
Common case
co-author
co-authors
Possessive case
co-author's
co-authors'
Plural
co-authors
co-authors'

Conjugation of the verb co-author, regular     

co-author not co-authorco-author?
All forms Indicative Conditional Participles Infinitives

Indicative

Present Indefinite

I co-author
you co-author
he/she/it co-authors
we co-author
you co-author
they co-author

Present Continuous

I am co-authoring
you are co-authoring
he/she/it is co-authoring
we are co-authoring
you are co-authoring
they are co-authoring

Present Perfect

I have co-authored
you have co-authored
he/she/it has co-authored
we have co-authored
you have co-authored
they have co-authored

Present Perfect Continuous

I have been co-authoring
you have been co-authoring
he/she/it has been co-authoring
we have been co-authoring
you have been co-authoring
they have been co-authoring

Past Indefinite

I co-authored
you co-authored
he/she/it co-authored
we co-authored
you co-authored
they co-authored

Past Continuous

I was co-authoring
you were co-authoring
he/she/it was co-authoring
we were co-authoring
you were co-authoring
they were co-authoring

Past Perfect

I had co-authored
you had co-authored
he/she/it had co-authored
we had co-authored
you had co-authored
they had co-authored

Past Perfect Continuous

I had been co-authoring
you had been co-authoring
he/she/it had been co-authoring
we had been co-authoring
you had been co-authoring
they had been co-authoring

Future Indefinite

I will co-author
you will co-author
he/she/it will co-author
we will co-author
you will co-author
they will co-author

Future Continuous

I will be co-authoring
you will be co-authoring
he/she/it will be co-authoring
we will be co-authoring
you will be co-authoring
they will be co-authoring

Future Perfect

I will have co-authored
you will have co-authored
he/she/it will have co-authored
we will have co-authored
you will have co-authored
they will have co-authored

Future Perfect Continuous

I will have been co-authoring
you will have been co-authoring
he/she/it will have been co-authoring
we will have been co-authoring
you will have been co-authoring
they will have been co-authoring

Indicative

Present Indefinite

I don't co-author
you don't co-author
he/she/it doesn't co-author
we don't co-author
you don't co-author
they don't co-author

Present Continuous

I am not co-authoring
you aren't co-authoring
he/she/it isn't co-authoring
we aren't co-authoring
you aren't co-authoring
they aren't co-authoring

Present Perfect

I haven't co-authored
you haven't co-authored
he/she/it hasn't co-authored
we haven't co-authored
you haven't co-authored
they haven't co-authored

Present Perfect Continuous

I haven't been co-authoring
you haven't been co-authoring
he/she/it hasn't been co-authoring
we haven't been co-authoring
you haven't been co-authoring
they haven't been co-authoring

Past Indefinite

I didn't co-author
you didn't co-author
he/she/it didn't co-author
we didn't co-author
you didn't co-author
they didn't co-author

Past Continuous

I wasn't co-authoring
you weren't co-authoring
he/she/it wasn't co-authoring
we weren't co-authoring
you weren't co-authoring
they weren't co-authoring

Past Perfect

I hadn't co-authored
you hadn't co-authored
he/she/it hadn't co-authored
we hadn't co-authored
you hadn't co-authored
they hadn't co-authored

Past Perfect Continuous

I hadn't been co-authoring
you hadn't been co-authoring
he/she/it hadn't been co-authoring
we hadn't been co-authoring
you hadn't been co-authoring
they hadn't been co-authoring

Future Indefinite

I shan't / won't co-author
you won't co-author
he/she/it won't co-author
we shan't / won't co-author
you won't co-author
they won't co-author

Future Continuous

I shan't / won't be co-authoring
you won't be co-authoring
he/she/it won't be co-authoring
we shan't / won't be co-authoring
you won't be co-authoring
they won't be co-authoring

Future Perfect

I shan't / won't have co-authored
you won't have co-authored
he/she/it won't have co-authored
we shan't / won't have co-authored
you won't have co-authored
they won't have co-authored

Future Perfect Continuous

I shan't / won't have been co-authoring
you won't have been co-authoring
he/she/it won't have been co-authoring
we shan't / won't have been co-authoring
you won't have been co-authoring
they won't have been co-authoring

Indicative

Present Indefinite

do I co-author?
do you co-author?
does he/she/it co-author?
do we co-author?
do you co-author?
do they co-author?

Present Continuous

am I co-authoring?
are you co-authoring?
is he/she/it co-authoring?
are we co-authoring?
are you co-authoring?
are they co-authoring?

Present Perfect

have I co-authored?
have you co-authored?
has he/she/it co-authored?
have we co-authored?
have you co-authored?
have they co-authored?

Present Perfect Continuous

have I been co-authoring?
have you been co-authoring?
has he/she/it been co-authoring?
have we been co-authoring?
have you been co-authoring?
have they been co-authoring?

Past Indefinite

did I co-author?
did you co-author?
did he/she/it co-author?
did we co-author?
did you co-author?
did they co-author?

Past Continuous

was I co-authoring?
were you co-authoring?
was he/she/it co-authoring?
were we co-authoring?
were you co-authoring?
were they co-authoring?

Past Perfect

had I co-authored?
had you co-authored?
had he/she/it co-authored?
had we co-authored?
had you co-authored?
had they co-authored?

Past Perfect Continuous

had I been co-authoring?
had you been co-authoring?
had he/she/it been co-authoring?
had we been co-authoring?
had you been co-authoring?
had they been co-authoring?

Future Indefinite

will I co-author?
will you co-author?
will he/she/it co-author?
will we co-author?
will you co-author?
will they co-author?

Future Continuous

will I be co-authoring?
will you be co-authoring?
will he/she/it be co-authoring?
will we be co-authoring?
will you be co-authoring?
will they be co-authoring?

Future Perfect

will I have co-authored?
will you have co-authored?
will he/she/it have co-authored?
will we have co-authored?
will you have co-authored?
will they have co-authored?

Future Perfect Continuous

will I have been co-authoring?
will you have been co-authoring?
will he/she/it have been co-authoring?
will we have been co-authoring?
will you have been co-authoring?
will they have been co-authoring?

Conditional

Conditional Present

I would co-author
you would co-author
he/she/it would co-author
we would co-author
you would co-author
they would co-author

Conditional Present Continuous

I would be co-authoring
you would be co-authoring
he/she/it would be co-authoring
we would be co-authoring
you would be co-authoring
they would be co-authoring

Conditional Perfect

I would have co-authored
you would have co-authored
he/she/it would have co-authored
we would have co-authored
you would have co-authored
they would have co-authored

Conditional Perfect Continuous

I would have been co-authoring
you would have been co-authoring
he/she/it would have been co-authoring
we would have been co-authoring
you would have been co-authoring
they would have been co-authoring

Conditional

Conditional Present

I wouldn't co-author
you wouldn't co-author
he/she/it wouldn't co-author
we wouldn't co-author
you wouldn't co-author
they wouldn't co-author

Conditional Present Continuous

I wouldn't be co-authoring
you wouldn't be co-authoring
he/she/it wouldn't be co-authoring
we wouldn't be co-authoring
you wouldn't be co-authoring
they wouldn't be co-authoring

Conditional Perfect

I wouldn't have co-authored
you wouldn't have co-authored
he/she/it wouldn't have co-authored
we wouldn't have co-authored
you wouldn't have co-authored
they wouldn't have co-authored

Conditional Perfect Continuous

I wouldn't have been co-authoring
you wouldn't have been co-authoring
he/she/it wouldn't have been co-authoring
we wouldn't have been co-authoring
you wouldn't have been co-authoring
they wouldn't have been co-authoring

Conditional

Conditional Present

would I co-author?
would you co-author?
would he/she/it co-author?
would we co-author?
would you co-author?
would they co-author?

Conditional Present Continuous

would I be co-authoring?
would you be co-authoring?
would he/she/it be co-authoring?
would we be co-authoring?
would you be co-authoring?
would they be co-authoring?

Conditional Perfect

would I have co-authored?
would you have co-authored?
would he/she/it have co-authored?
would we have co-authored?
would you have co-authored?
would they have co-authored?

Conditional Perfect Continuous

would I have been co-authoring?
would you have been co-authoring?
would he/she/it have been co-authoring?
would we have been co-authoring?
would you have been co-authoring?
would they have been co-authoring?

Participles

Present

co-authoring

Past

co-authored

Infinitives

Infinitives

to co-author
to have co-authored
to be co-authoring
to have been co-authoring
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