English verb conjugation COULD UNTIE

Regular verb: untie - untied - untied

Affirmation

Simple form

I could untie
you could untie
he could untie
we could untie
you could untie
they could untie

V-ing form

I could be untying
you could be untying
he could be untying
we could be untying
you could be untying
they could be untying

Perfect

I could have untied
you could have untied
he could have untied
we could have untied
you could have untied
they could have untied

V-ing perfect

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

Negation

Simple form

I could not untie
you could not untie
he could not untie
we could not untie
you could not untie
they could not untie

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I untie?
could you untie?
could he untie?
could we untie?
could you untie?
could they untie?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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