I could rap you could rap she could rap we could rap you could rap they could rap
V-ing form
I could be rapping you could be rapping she could be rapping we could be rapping you could be rapping they could be rapping
Perfect
I could have rapped you could have rapped she could have rapped we could have rapped you could have rapped they could have rapped
V-ing perfect
I could have been rapping you could have been rapping she could have been rapping we could have been rapping you could have been rapping they could have been rapping
Negation
Simple form
I could not rap you could not rap she could not rap we could not rap you could not rap they could not rap
V-ing form
I could not be rapping you could not be rapping she could not be rapping we could not be rapping you could not be rapping they could not be rapping
Perfect
I could not have rapped you could not have rapped she could not have rapped we could not have rapped you could not have rapped they could not have rapped
V-ing perfect
I could not have been rapping you could not have been rapping she could not have been rapping we could not have been rapping you could not have been rapping they could not have been rapping
Interrogative form
Simple form
could I rap? could you rap? could she rap? could we rap? could you rap? could they rap?
V-ing form
could I be rapping? could you be rapping? could she be rapping? could we be rapping? could you be rapping? could they be rapping?
Perfect
could I have rapped? could you have rapped? could she have rapped? could we have rapped? could you have rapped? could they have rapped?
V-ing perfect
could I have been rapping? could you have been rapping? could she have been rapping? could we have been rapping? could you have been rapping? could they have been rapping?
Interro-negative form
Simple form
could I not rap? could you not rap? could she not rap? could we not rap? could you not rap? could they not rap?
V-ing form
could I not be rapping? could you not be rapping? could she not be rapping? could we not be rapping? could you not be rapping? could they not be rapping?
Perfect
could I not have rapped? could you not have rapped? could she not have rapped? could we not have rapped? could you not have rapped? could they not have rapped?
V-ing perfect
could I not have been rapping? could you not have been rapping? could she not have been rapping? could we not have been rapping? could you not have been rapping? could they not have been rapping?