English verb conjugation COULD STY

Regular verb: sty - stied - stied

Affirmation

Simple form

I could sty
you could sty
he could sty
we could sty
you could sty
they could sty

V-ing form

I could be stying
you could be stying
he could be stying
we could be stying
you could be stying
they could be stying

Perfect

I could have stied
you could have stied
he 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
he 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
he 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
he 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
he 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
he 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 he sty?
could we sty?
could you sty?
could they sty?

V-ing form

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

Perfect

could I have stied?
could you have stied?
could he 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 he 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 he 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 he 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 he 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 he 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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