I could bang you could bang she could bang we could bang you could bang they could bang
V-ing form
I could be banging you could be banging she could be banging we could be banging you could be banging they could be banging
Perfect
I could have banged you could have banged she could have banged we could have banged you could have banged they could have banged
V-ing perfect
I could have been banging you could have been banging she could have been banging we could have been banging you could have been banging they could have been banging
Negation
Simple form
I could not bang you could not bang she could not bang we could not bang you could not bang they could not bang
V-ing form
I could not be banging you could not be banging she could not be banging we could not be banging you could not be banging they could not be banging
Perfect
I could not have banged you could not have banged she could not have banged we could not have banged you could not have banged they could not have banged
V-ing perfect
I could not have been banging you could not have been banging she could not have been banging we could not have been banging you could not have been banging they could not have been banging
Interrogative form
Simple form
could I bang? could you bang? could she bang? could we bang? could you bang? could they bang?
V-ing form
could I be banging? could you be banging? could she be banging? could we be banging? could you be banging? could they be banging?
Perfect
could I have banged? could you have banged? could she have banged? could we have banged? could you have banged? could they have banged?
V-ing perfect
could I have been banging? could you have been banging? could she have been banging? could we have been banging? could you have been banging? could they have been banging?
Interro-negative form
Simple form
could I not bang? could you not bang? could she not bang? could we not bang? could you not bang? could they not bang?
V-ing form
could I not be banging? could you not be banging? could she not be banging? could we not be banging? could you not be banging? could they not be banging?
Perfect
could I not have banged? could you not have banged? could she not have banged? could we not have banged? could you not have banged? could they not have banged?
V-ing perfect
could I not have been banging? could you not have been banging? could she not have been banging? could we not have been banging? could you not have been banging? could they not have been banging?