English verb conjugation COULD SPY

Regular verb: spy - spied - spied


Affirmation

Simple form

I could spy
you could spy
he could spy
we could spy
you could spy
they could spy

V-ing form

I could be spying
you could be spying
he could be spying
we could be spying
you could be spying
they could be spying

Perfect

I could have spied
you could have spied
he could have spied
we could have spied
you could have spied
they could have spied

V-ing perfect

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

Negation

Simple form

I could not spy
you could not spy
he could not spy
we could not spy
you could not spy
they could not spy

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I spy?
could you spy?
could he spy?
could we spy?
could you spy?
could they spy?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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