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 could not counterattack you could not counterattack he could not counterattack we could not counterattack you could not counterattack they could not counterattack	I could not be counterattacking you could not be counterattacking he could not be counterattacking we could not be counterattacking you could not be counterattacking they could not be counterattacking
Perfect	V-ing perfect
I could not have counterattacked you could not have counterattacked he could not have counterattacked we could not have counterattacked you could not have counterattacked they could not have counterattacked	I could not have been counterattacking you could not have been counterattacking he could not have been counterattacking we could not have been counterattacking you could not have been counterattacking they could not 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
could I not counterattack? could you not counterattack? could he not counterattack? could we not counterattack? could you not counterattack? could they not counterattack?	could I not be counterattacking? could you not be counterattacking? could he not be counterattacking? could we not be counterattacking? could you not be counterattacking? could they not be counterattacking?
Perfect	V-ing perfect
could I not have counterattacked? could you not have counterattacked? could he not have counterattacked? could we not have counterattacked? could you not have counterattacked? could they not have counterattacked?	could I not have been counterattacking? could you not have been counterattacking? could he not have been counterattacking? could we not have been counterattacking? could you not have been counterattacking? could they not have been counterattacking?