I can rap you can rap he can rap we can rap you can rap they can rap
V-ing form
I can be rapping you can be rapping he can be rapping we can be rapping you can be rapping they can be rapping
Perfect
I can have rapped you can have rapped he can have rapped we can have rapped you can have rapped they can have rapped
V-ing perfect
I can have been rapping you can have been rapping he can have been rapping we can have been rapping you can have been rapping they can have been rapping
Negation
Simple form
I can't rap you can't rap he can't rap we can't rap you can't rap they can't rap
V-ing form
I can't be rapping you can't be rapping he can't be rapping we can't be rapping you can't be rapping they can't be rapping
Perfect
I can't have rapped you can't have rapped he can't have rapped we can't have rapped you can't have rapped they can't have rapped
V-ing perfect
I can't have been rapping you can't have been rapping he can't have been rapping we can't have been rapping you can't have been rapping they can't have been rapping
Interrogative form
Simple form
can I rap? can you rap? can he rap? can we rap? can you rap? can they rap?
V-ing form
can I be rapping? can you be rapping? can he be rapping? can we be rapping? can you be rapping? can they be rapping?
Perfect
can I have rapped? can you have rapped? can he have rapped? can we have rapped? can you have rapped? can they have rapped?
V-ing perfect
can I have been rapping? can you have been rapping? can he have been rapping? can we have been rapping? can you have been rapping? can they have been rapping?
Interro-negative form
Simple form
can't I rap? can't you rap? can't he rap? can't we rap? can't you rap? can't they rap?
V-ing form
can't I be rapping? can't you be rapping? can't he be rapping? can't we be rapping? can't you be rapping? can't they be rapping?
Perfect
can't I have rapped? can't you have rapped? can't he have rapped? can't we have rapped? can't you have rapped? can't they have rapped?
V-ing perfect
can't I have been rapping? can't you have been rapping? can't he have been rapping? can't we have been rapping? can't you have been rapping? can't they have been rapping?