English verb conjugation
CAN COUNTERATTACK

Regular verb: counterattack - counterattacked - counterattacked

Affirmation

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

Negation

Simple form	V-ing form
I cannot counterattack you cannot counterattack she cannot counterattack we cannot counterattack you cannot counterattack they cannot counterattack	I cannot be counterattacking you cannot be counterattacking she cannot be counterattacking we cannot be counterattacking you cannot be counterattacking they cannot be counterattacking
Perfect	V-ing perfect
I cannot have counterattacked you cannot have counterattacked she cannot have counterattacked we cannot have counterattacked you cannot have counterattacked they cannot have counterattacked	I cannot have been counterattacking you cannot have been counterattacking she cannot have been counterattacking we cannot have been counterattacking you cannot have been counterattacking they cannot have been counterattacking

Interrogative form

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

Interro-negative form

Simple form	V-ing form
can I not counterattack? can you not counterattack? can she not counterattack? can we not counterattack? can you not counterattack? can they not counterattack?	can I not be counterattacking? can you not be counterattacking? can she not be counterattacking? can we not be counterattacking? can you not be counterattacking? can they not be counterattacking?
Perfect	V-ing perfect
can I not have counterattacked? can you not have counterattacked? can she not have counterattacked? can we not have counterattacked? can you not have counterattacked? can they not have counterattacked?	can I not have been counterattacking? can you not have been counterattacking? can she not have been counterattacking? can we not have been counterattacking? can you not have been counterattacking? can they not have been counterattacking?