English verb conjugation COULD POSTFIX

Regular verb: postfix - postfixed - postfixed

Affirmation

Simple form

I could postfix
you could postfix
he could postfix
we could postfix
you could postfix
they could postfix

V-ing form

I could be postfixing
you could be postfixing
he could be postfixing
we could be postfixing
you could be postfixing
they could be postfixing

Perfect

I could have postfixed
you could have postfixed
he could have postfixed
we could have postfixed
you could have postfixed
they could have postfixed

V-ing perfect

I could have been postfixing
you could have been postfixing
he could have been postfixing
we could have been postfixing
you could have been postfixing
they could have been postfixing

Negation

Simple form

I could not postfix
you could not postfix
he could not postfix
we could not postfix
you could not postfix
they could not postfix

V-ing form

I could not be postfixing
you could not be postfixing
he could not be postfixing
we could not be postfixing
you could not be postfixing
they could not be postfixing

Perfect

I could not have postfixed
you could not have postfixed
he could not have postfixed
we could not have postfixed
you could not have postfixed
they could not have postfixed

V-ing perfect

I could not have been postfixing
you could not have been postfixing
he could not have been postfixing
we could not have been postfixing
you could not have been postfixing
they could not have been postfixing

Interrogative form

Simple form

could I postfix?
could you postfix?
could he postfix?
could we postfix?
could you postfix?
could they postfix?

V-ing form

could I be postfixing?
could you be postfixing?
could he be postfixing?
could we be postfixing?
could you be postfixing?
could they be postfixing?

Perfect

could I have postfixed?
could you have postfixed?
could he have postfixed?
could we have postfixed?
could you have postfixed?
could they have postfixed?

V-ing perfect

could I have been postfixing?
could you have been postfixing?
could he have been postfixing?
could we have been postfixing?
could you have been postfixing?
could they have been postfixing?

Interro-negative form

Simple form

could I not postfix?
could you not postfix?
could he not postfix?
could we not postfix?
could you not postfix?
could they not postfix?

V-ing form

could I not be postfixing?
could you not be postfixing?
could he not be postfixing?
could we not be postfixing?
could you not be postfixing?
could they not be postfixing?

Perfect

could I not have postfixed?
could you not have postfixed?
could he not have postfixed?
could we not have postfixed?
could you not have postfixed?
could they not have postfixed?

V-ing perfect

could I not have been postfixing?
could you not have been postfixing?
could he not have been postfixing?
could we not have been postfixing?
could you not have been postfixing?
could they not have been postfixing?

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