English verb conjugation COULD EXCUSE

Regular verb: excuse - excused - excused

Affirmation

Simple form

I could excuse
you could excuse
he could excuse
we could excuse
you could excuse
they could excuse

V-ing form

I could be excusing
you could be excusing
he could be excusing
we could be excusing
you could be excusing
they could be excusing

Perfect

I could have excused
you could have excused
he could have excused
we could have excused
you could have excused
they could have excused

V-ing perfect

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

Negation

Simple form

I could not excuse
you could not excuse
he could not excuse
we could not excuse
you could not excuse
they could not excuse

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I excuse?
could you excuse?
could he excuse?
could we excuse?
could you excuse?
could they excuse?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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