I can play you can play he can play we can play you can play they can play
V-ing form
I can be playing you can be playing he can be playing we can be playing you can be playing they can be playing
Perfect
I can have played you can have played he can have played we can have played you can have played they can have played
V-ing perfect
I can have been playing you can have been playing he can have been playing we can have been playing you can have been playing they can have been playing
Negation
Simple form
I cannot play you cannot play he cannot play we cannot play you cannot play they cannot play
V-ing form
I cannot be playing you cannot be playing he cannot be playing we cannot be playing you cannot be playing they cannot be playing
Perfect
I cannot have played you cannot have played he cannot have played we cannot have played you cannot have played they cannot have played
V-ing perfect
I cannot have been playing you cannot have been playing he cannot have been playing we cannot have been playing you cannot have been playing they cannot have been playing
Interrogative form
Simple form
can I play? can you play? can he play? can we play? can you play? can they play?
V-ing form
can I be playing? can you be playing? can he be playing? can we be playing? can you be playing? can they be playing?
Perfect
can I have played? can you have played? can he have played? can we have played? can you have played? can they have played?
V-ing perfect
can I have been playing? can you have been playing? can he have been playing? can we have been playing? can you have been playing? can they have been playing?
Interro-negative form
Simple form
can I not play? can you not play? can he not play? can we not play? can you not play? can they not play?
V-ing form
can I not be playing? can you not be playing? can he not be playing? can we not be playing? can you not be playing? can they not be playing?
Perfect
can I not have played? can you not have played? can he not have played? can we not have played? can you not have played? can they not have played?
V-ing perfect
can I not have been playing? can you not have been playing? can he not have been playing? can we not have been playing? can you not have been playing? can they not have been playing?