I could pound you could pound she could pound we could pound you could pound they could pound
V-ing form
I could be pounding you could be pounding she could be pounding we could be pounding you could be pounding they could be pounding
Perfect
I could have pounded you could have pounded she could have pounded we could have pounded you could have pounded they could have pounded
V-ing perfect
I could have been pounding you could have been pounding she could have been pounding we could have been pounding you could have been pounding they could have been pounding
Negation
Simple form
I could not pound you could not pound she could not pound we could not pound you could not pound they could not pound
V-ing form
I could not be pounding you could not be pounding she could not be pounding we could not be pounding you could not be pounding they could not be pounding
Perfect
I could not have pounded you could not have pounded she could not have pounded we could not have pounded you could not have pounded they could not have pounded
V-ing perfect
I could not have been pounding you could not have been pounding she could not have been pounding we could not have been pounding you could not have been pounding they could not have been pounding
Interrogative form
Simple form
could I pound? could you pound? could she pound? could we pound? could you pound? could they pound?
V-ing form
could I be pounding? could you be pounding? could she be pounding? could we be pounding? could you be pounding? could they be pounding?
Perfect
could I have pounded? could you have pounded? could she have pounded? could we have pounded? could you have pounded? could they have pounded?
V-ing perfect
could I have been pounding? could you have been pounding? could she have been pounding? could we have been pounding? could you have been pounding? could they have been pounding?
Interro-negative form
Simple form
could I not pound? could you not pound? could she not pound? could we not pound? could you not pound? could they not pound?
V-ing form
could I not be pounding? could you not be pounding? could she not be pounding? could we not be pounding? could you not be pounding? could they not be pounding?
Perfect
could I not have pounded? could you not have pounded? could she not have pounded? could we not have pounded? could you not have pounded? could they not have pounded?
V-ing perfect
could I not have been pounding? could you not have been pounding? could she not have been pounding? could we not have been pounding? could you not have been pounding? could they not have been pounding?