English verb conjugation
CAN PLAY

Regular verb: play - played - played

Affirmation

Simple form	V-ing form
I can play you can play she can play we can play you can play they can play	I can be playing you can be playing she can be playing we can be playing you can be playing they can be playing
Perfect	V-ing perfect
I can have played you can have played she can have played we can have played you can have played they can have played	I can have been playing you can have been playing she can have been playing we can have been playing you can have been playing they can have been playing

Negation

Simple form	V-ing form
I cannot play you cannot play she cannot play we cannot play you cannot play they cannot play	I cannot be playing you cannot be playing she cannot be playing we cannot be playing you cannot be playing they cannot be playing
Perfect	V-ing perfect
I cannot have played you cannot have played she cannot have played we cannot have played you cannot have played they cannot have played	I cannot have been playing you cannot have been playing she cannot have been playing we cannot have been playing you cannot have been playing they cannot have been playing

Interrogative form

Simple form	V-ing form
can I play? can you play? can she play? can we play? can you play? can they play?	can I be playing? can you be playing? can she be playing? can we be playing? can you be playing? can they be playing?
Perfect	V-ing perfect
can I have played? can you have played? can she have played? can we have played? can you have played? can they have played?	can I have been playing? can you have been playing? can she have been playing? can we have been playing? can you have been playing? can they have been playing?

Interro-negative form

Simple form	V-ing form
can I not play? can you not play? can she not play? can we not play? can you not play? can they not play?	can I not be playing? can you not be playing? can she not be playing? can we not be playing? can you not be playing? can they not be playing?
Perfect	V-ing perfect
can I not have played? can you not have played? can she not have played? can we not have played? can you not have played? can they not have played?	can I not have been playing? can you not have been playing? can she not have been playing? can we not have been playing? can you not have been playing? can they not have been playing?