English verb conjugation
COULD ATTACK ATTACK

Regular verb: attack attack - attack attacked - attack attacked

Warning, this verb may not exist. Conjugation is given as example.

Affirmation

Simple form	V-ing form
I could attack attack you could attack attack she could attack attack we could attack attack you could attack attack they could attack attack	I could be attack attacking you could be attack attacking she could be attack attacking we could be attack attacking you could be attack attacking they could be attack attacking
Perfect	V-ing perfect
I could have attack attacked you could have attack attacked she could have attack attacked we could have attack attacked you could have attack attacked they could have attack attacked	I could have been attack attacking you could have been attack attacking she could have been attack attacking we could have been attack attacking you could have been attack attacking they could have been attack attacking

Negation

Simple form	V-ing form
I couldn't attack attack you couldn't attack attack she couldn't attack attack we couldn't attack attack you couldn't attack attack they couldn't attack attack	I couldn't be attack attacking you couldn't be attack attacking she couldn't be attack attacking we couldn't be attack attacking you couldn't be attack attacking they couldn't be attack attacking
Perfect	V-ing perfect
I couldn't have attack attacked you couldn't have attack attacked she couldn't have attack attacked we couldn't have attack attacked you couldn't have attack attacked they couldn't have attack attacked	I couldn't have been attack attacking you couldn't have been attack attacking she couldn't have been attack attacking we couldn't have been attack attacking you couldn't have been attack attacking they couldn't have been attack attacking

Interrogative form

Simple form	V-ing form
could I attack attack? could you attack attack? could she attack attack? could we attack attack? could you attack attack? could they attack attack?	could I be attack attacking? could you be attack attacking? could she be attack attacking? could we be attack attacking? could you be attack attacking? could they be attack attacking?
Perfect	V-ing perfect
could I have attack attacked? could you have attack attacked? could she have attack attacked? could we have attack attacked? could you have attack attacked? could they have attack attacked?	could I have been attack attacking? could you have been attack attacking? could she have been attack attacking? could we have been attack attacking? could you have been attack attacking? could they have been attack attacking?

Interro-negative form

Simple form	V-ing form
couldn't I attack attack? couldn't you attack attack? couldn't she attack attack? couldn't we attack attack? couldn't you attack attack? couldn't they attack attack?	couldn't I be attack attacking? couldn't you be attack attacking? couldn't she be attack attacking? couldn't we be attack attacking? couldn't you be attack attacking? couldn't they be attack attacking?
Perfect	V-ing perfect
couldn't I have attack attacked? couldn't you have attack attacked? couldn't she have attack attacked? couldn't we have attack attacked? couldn't you have attack attacked? couldn't they have attack attacked?	couldn't I have been attack attacking? couldn't you have been attack attacking? couldn't she have been attack attacking? couldn't we have been attack attacking? couldn't you have been attack attacking? couldn't they have been attack attacking?