English verb conjugation COULD ATTACK

Regular verb: attack - attacked - attacked

Affirmation

Simple form

I could attack
you could attack
he could attack
we could attack
you could attack
they could attack

V-ing form

I could be attacking
you could be attacking
he could be attacking
we could be attacking
you could be attacking
they could be attacking

Perfect

I could have attacked
you could have attacked
he could have attacked
we could have attacked
you could have attacked
they could have attacked

V-ing perfect

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

Negation

Simple form

I couldn't attack
you couldn't attack
he couldn't attack
we couldn't attack
you couldn't attack
they couldn't attack

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I attack?
could you attack?
could he attack?
could we attack?
could you attack?
could they attack?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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