English verb conjugation
COULD COUNTERATTACK

Regular verb: counterattack - counterattacked - counterattacked

Affirmation

Simple form	V-ing form
I could counterattack you could counterattack he could counterattack we could counterattack you could counterattack they could counterattack	I could be counterattacking you could be counterattacking he could be counterattacking we could be counterattacking you could be counterattacking they could be counterattacking
Perfect	V-ing perfect
I could have counterattacked you could have counterattacked he could have counterattacked we could have counterattacked you could have counterattacked they could have counterattacked	I could have been counterattacking you could have been counterattacking he could have been counterattacking we could have been counterattacking you could have been counterattacking they could have been counterattacking

Negation

Simple form	V-ing form
I couldn't counterattack you couldn't counterattack he couldn't counterattack we couldn't counterattack you couldn't counterattack they couldn't counterattack	I couldn't be counterattacking you couldn't be counterattacking he couldn't be counterattacking we couldn't be counterattacking you couldn't be counterattacking they couldn't be counterattacking
Perfect	V-ing perfect
I couldn't have counterattacked you couldn't have counterattacked he couldn't have counterattacked we couldn't have counterattacked you couldn't have counterattacked they couldn't have counterattacked	I couldn't have been counterattacking you couldn't have been counterattacking he couldn't have been counterattacking we couldn't have been counterattacking you couldn't have been counterattacking they couldn't have been counterattacking

Interrogative form

Simple form	V-ing form
could I counterattack? could you counterattack? could he counterattack? could we counterattack? could you counterattack? could they counterattack?	could I be counterattacking? could you be counterattacking? could he be counterattacking? could we be counterattacking? could you be counterattacking? could they be counterattacking?
Perfect	V-ing perfect
could I have counterattacked? could you have counterattacked? could he have counterattacked? could we have counterattacked? could you have counterattacked? could they have counterattacked?	could I have been counterattacking? could you have been counterattacking? could he have been counterattacking? could we have been counterattacking? could you have been counterattacking? could they have been counterattacking?

Interro-negative form

Simple form	V-ing form
couldn't I counterattack? couldn't you counterattack? couldn't he counterattack? couldn't we counterattack? couldn't you counterattack? couldn't they counterattack?	couldn't I be counterattacking? couldn't you be counterattacking? couldn't he be counterattacking? couldn't we be counterattacking? couldn't you be counterattacking? couldn't they be counterattacking?
Perfect	V-ing perfect
couldn't I have counterattacked? couldn't you have counterattacked? couldn't he have counterattacked? couldn't we have counterattacked? couldn't you have counterattacked? couldn't they have counterattacked?	couldn't I have been counterattacking? couldn't you have been counterattacking? couldn't he have been counterattacking? couldn't we have been counterattacking? couldn't you have been counterattacking? couldn't they have been counterattacking?