The Conjugator
English verb conjugation
COULD STUDY

Regular verb: study - studied - studied

Affirmation

Simple form

V-ing form

I could study
you could study
she could study
we could study
you could study
they could study
I could be studying
you could be studying
she could be studying
we could be studying
you could be studying
they could be studying

Perfect

V-ing perfect

I could have studied
you could have studied
she could have studied
we could have studied
you could have studied
they could have studied
I could have been studying
you could have been studying
she could have been studying
we could have been studying
you could have been studying
they could have been studying

Negation

Simple form

V-ing form

I could not study
you could not study
she could not study
we could not study
you could not study
they could not study
I could not be studying
you could not be studying
she could not be studying
we could not be studying
you could not be studying
they could not be studying

Perfect

V-ing perfect

I could not have studied
you could not have studied
she could not have studied
we could not have studied
you could not have studied
they could not have studied
I could not have been studying
you could not have been studying
she could not have been studying
we could not have been studying
you could not have been studying
they could not have been studying

Interrogative form

Simple form

V-ing form

could I study?
could you study?
could she study?
could we study?
could you study?
could they study?
could I be studying?
could you be studying?
could she be studying?
could we be studying?
could you be studying?
could they be studying?

Perfect

V-ing perfect

could I have studied?
could you have studied?
could she have studied?
could we have studied?
could you have studied?
could they have studied?
could I have been studying?
could you have been studying?
could she have been studying?
could we have been studying?
could you have been studying?
could they have been studying?

Interro-negative form

Simple form

V-ing form

could I not study?
could you not study?
could she not study?
could we not study?
could you not study?
could they not study?
could I not be studying?
could you not be studying?
could she not be studying?
could we not be studying?
could you not be studying?
could they not be studying?

Perfect

V-ing perfect

could I not have studied?
could you not have studied?
could she not have studied?
could we not have studied?
could you not have studied?
could they not have studied?
could I not have been studying?
could you not have been studying?
could she not have been studying?
could we not have been studying?
could you not have been studying?
could they not have been studying?