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