English verb conjugation COULD PRESTAMP

Regular verb: prestamp - prestamped - prestamped

Affirmation

Simple form

I could prestamp
you could prestamp
he could prestamp
we could prestamp
you could prestamp
they could prestamp

V-ing form

I could be prestamping
you could be prestamping
he could be prestamping
we could be prestamping
you could be prestamping
they could be prestamping

Perfect

I could have prestamped
you could have prestamped
he could have prestamped
we could have prestamped
you could have prestamped
they could have prestamped

V-ing perfect

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

Negation

Simple form

I could not prestamp
you could not prestamp
he could not prestamp
we could not prestamp
you could not prestamp
they could not prestamp

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I prestamp?
could you prestamp?
could he prestamp?
could we prestamp?
could you prestamp?
could they prestamp?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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