English verb conjugation COULD TWINE

Regular verb: twine - twined - twined

Affirmation

Simple form

I could twine
you could twine
he could twine
we could twine
you could twine
they could twine

V-ing form

I could be twining
you could be twining
he could be twining
we could be twining
you could be twining
they could be twining

Perfect

I could have twined
you could have twined
he could have twined
we could have twined
you could have twined
they could have twined

V-ing perfect

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

Negation

Simple form

I could not twine
you could not twine
he could not twine
we could not twine
you could not twine
they could not twine

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I twine?
could you twine?
could he twine?
could we twine?
could you twine?
could they twine?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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