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 can't pound you can't pound he can't pound we can't pound you can't pound they can't pound
V-ing form
I can't be pounding you can't be pounding he can't be pounding we can't be pounding you can't be pounding they can't be pounding
Perfect
I can't have pounded you can't have pounded he can't have pounded we can't have pounded you can't have pounded they can't have pounded
V-ing perfect
I can't have been pounding you can't have been pounding he can't have been pounding we can't have been pounding you can't have been pounding they can't 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't I pound? can't you pound? can't he pound? can't we pound? can't you pound? can't they pound?
V-ing form
can't I be pounding? can't you be pounding? can't he be pounding? can't we be pounding? can't you be pounding? can't they be pounding?
Perfect
can't I have pounded? can't you have pounded? can't he have pounded? can't we have pounded? can't you have pounded? can't they have pounded?
V-ing perfect
can't I have been pounding? can't you have been pounding? can't he have been pounding? can't we have been pounding? can't you have been pounding? can't they have been pounding?