English verb conjugation COULD STY

Regular verb: sty - stied - stied

Affirmation

Simple form

I could sty
you could sty
she could sty
we could sty
you could sty
they could sty

V-ing form

I could be stying
you could be stying
she could be stying
we could be stying
you could be stying
they could be stying

Perfect

I could have stied
you could have stied
she could have stied
we could have stied
you could have stied
they could have stied

V-ing perfect

I could have been stying
you could have been stying
she could have been stying
we could have been stying
you could have been stying
they could have been stying

Negation

Simple form

I could not sty
you could not sty
she could not sty
we could not sty
you could not sty
they could not sty

V-ing form

I could not be stying
you could not be stying
she could not be stying
we could not be stying
you could not be stying
they could not be stying

Perfect

I could not have stied
you could not have stied
she could not have stied
we could not have stied
you could not have stied
they could not have stied

V-ing perfect

I could not have been stying
you could not have been stying
she could not have been stying
we could not have been stying
you could not have been stying
they could not have been stying

Interrogative form

Simple form

could I sty?
could you sty?
could she sty?
could we sty?
could you sty?
could they sty?

V-ing form

could I be stying?
could you be stying?
could she be stying?
could we be stying?
could you be stying?
could they be stying?

Perfect

could I have stied?
could you have stied?
could she have stied?
could we have stied?
could you have stied?
could they have stied?

V-ing perfect

could I have been stying?
could you have been stying?
could she have been stying?
could we have been stying?
could you have been stying?
could they have been stying?

Interro-negative form

Simple form

could I not sty?
could you not sty?
could she not sty?
could we not sty?
could you not sty?
could they not sty?

V-ing form

could I not be stying?
could you not be stying?
could she not be stying?
could we not be stying?
could you not be stying?
could they not be stying?

Perfect

could I not have stied?
could you not have stied?
could she not have stied?
could we not have stied?
could you not have stied?
could they not have stied?

V-ing perfect

could I not have been stying?
could you not have been stying?
could she not have been stying?
could we not have been stying?
could you not have been stying?
could they not have been stying?

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