English verb conjugation COULD EXCEL

Regular verb: excel - excelled - excelled

Affirmation

Simple form

I could excel
you could excel
he could excel
we could excel
you could excel
they could excel

V-ing form

I could be excelling
you could be excelling
he could be excelling
we could be excelling
you could be excelling
they could be excelling

Perfect

I could have excelled
you could have excelled
he could have excelled
we could have excelled
you could have excelled
they could have excelled

V-ing perfect

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

Negation

Simple form

I could not excel
you could not excel
he could not excel
we could not excel
you could not excel
they could not excel

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I excel?
could you excel?
could he excel?
could we excel?
could you excel?
could they excel?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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