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 couldn't excuse
you couldn't excuse
he couldn't excuse
we couldn't excuse
you couldn't excuse
they couldn't excuse

V-ing form

I couldn't be excusing
you couldn't be excusing
he couldn't be excusing
we couldn't be excusing
you couldn't be excusing
they couldn't be excusing

Perfect

I couldn't have excused
you couldn't have excused
he couldn't have excused
we couldn't have excused
you couldn't have excused
they couldn't have excused

V-ing perfect

I couldn't have been excusing
you couldn't have been excusing
he couldn't have been excusing
we couldn't have been excusing
you couldn't have been excusing
they couldn't 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

couldn't I excuse?
couldn't you excuse?
couldn't he excuse?
couldn't we excuse?
couldn't you excuse?
couldn't they excuse?

V-ing form

couldn't I be excusing?
couldn't you be excusing?
couldn't he be excusing?
couldn't we be excusing?
couldn't you be excusing?
couldn't they be excusing?

Perfect

couldn't I have excused?
couldn't you have excused?
couldn't he have excused?
couldn't we have excused?
couldn't you have excused?
couldn't they have excused?

V-ing perfect

couldn't I have been excusing?
couldn't you have been excusing?
couldn't he have been excusing?
couldn't we have been excusing?
couldn't you have been excusing?
couldn't they have been excusing?

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