English verb conjugation COULD OVERWINTER

Regular verb: overwinter - overwintered - overwintered

Affirmation

Simple form

I could overwinter
you could overwinter
he could overwinter
we could overwinter
you could overwinter
they could overwinter

V-ing form

I could be overwintering
you could be overwintering
he could be overwintering
we could be overwintering
you could be overwintering
they could be overwintering

Perfect

I could have overwintered
you could have overwintered
he could have overwintered
we could have overwintered
you could have overwintered
they could have overwintered

V-ing perfect

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

Negation

Simple form

I could not overwinter
you could not overwinter
he could not overwinter
we could not overwinter
you could not overwinter
they could not overwinter

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I overwinter?
could you overwinter?
could he overwinter?
could we overwinter?
could you overwinter?
could they overwinter?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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