English verb conjugation COULD OVERSTAY

Regular verb: overstay - overstayed - overstayed

Affirmation

Simple form

I could overstay
you could overstay
he could overstay
we could overstay
you could overstay
they could overstay

V-ing form

I could be overstaying
you could be overstaying
he could be overstaying
we could be overstaying
you could be overstaying
they could be overstaying

Perfect

I could have overstayed
you could have overstayed
he could have overstayed
we could have overstayed
you could have overstayed
they could have overstayed

V-ing perfect

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

Negation

Simple form

I could not overstay
you could not overstay
he could not overstay
we could not overstay
you could not overstay
they could not overstay

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I overstay?
could you overstay?
could he overstay?
could we overstay?
could you overstay?
could they overstay?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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