English verb conjugation COULD OVERSTUDY

Regular verb: overstudy - overstudied - overstudied

Affirmation

Simple form

I could overstudy
you could overstudy
he could overstudy
we could overstudy
you could overstudy
they could overstudy

V-ing form

I could be overstudying
you could be overstudying
he could be overstudying
we could be overstudying
you could be overstudying
they could be overstudying

Perfect

I could have overstudied
you could have overstudied
he could have overstudied
we could have overstudied
you could have overstudied
they could have overstudied

V-ing perfect

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

Negation

Simple form

I could not overstudy
you could not overstudy
he could not overstudy
we could not overstudy
you could not overstudy
they could not overstudy

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I overstudy?
could you overstudy?
could he overstudy?
could we overstudy?
could you overstudy?
could they overstudy?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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