English verb conjugation COULD POSTDATE

Regular verb: postdate - postdated - postdated

Affirmation

Simple form

I could postdate
you could postdate
he could postdate
we could postdate
you could postdate
they could postdate

V-ing form

I could be postdating
you could be postdating
he could be postdating
we could be postdating
you could be postdating
they could be postdating

Perfect

I could have postdated
you could have postdated
he could have postdated
we could have postdated
you could have postdated
they could have postdated

V-ing perfect

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

Negation

Simple form

I couldn't postdate
you couldn't postdate
he couldn't postdate
we couldn't postdate
you couldn't postdate
they couldn't postdate

V-ing form

I couldn't be postdating
you couldn't be postdating
he couldn't be postdating
we couldn't be postdating
you couldn't be postdating
they couldn't be postdating

Perfect

I couldn't have postdated
you couldn't have postdated
he couldn't have postdated
we couldn't have postdated
you couldn't have postdated
they couldn't have postdated

V-ing perfect

I couldn't have been postdating
you couldn't have been postdating
he couldn't have been postdating
we couldn't have been postdating
you couldn't have been postdating
they couldn't have been postdating

Interrogative form

Simple form

could I postdate?
could you postdate?
could he postdate?
could we postdate?
could you postdate?
could they postdate?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

couldn't I postdate?
couldn't you postdate?
couldn't he postdate?
couldn't we postdate?
couldn't you postdate?
couldn't they postdate?

V-ing form

couldn't I be postdating?
couldn't you be postdating?
couldn't he be postdating?
couldn't we be postdating?
couldn't you be postdating?
couldn't they be postdating?

Perfect

couldn't I have postdated?
couldn't you have postdated?
couldn't he have postdated?
couldn't we have postdated?
couldn't you have postdated?
couldn't they have postdated?

V-ing perfect

couldn't I have been postdating?
couldn't you have been postdating?
couldn't he have been postdating?
couldn't we have been postdating?
couldn't you have been postdating?
couldn't they have been postdating?

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