I may step you may step he may step we may step you may step they may step
V-ing form
I may be stepping you may be stepping he may be stepping we may be stepping you may be stepping they may be stepping
Perfect
I may have stepped you may have stepped he may have stepped we may have stepped you may have stepped they may have stepped
V-ing perfect
I may have been stepping you may have been stepping he may have been stepping we may have been stepping you may have been stepping they may have been stepping
Negation
Simple form
I may not step you may not step he may not step we may not step you may not step they may not step
V-ing form
I may not be stepping you may not be stepping he may not be stepping we may not be stepping you may not be stepping they may not be stepping
Perfect
I may not have stepped you may not have stepped he may not have stepped we may not have stepped you may not have stepped they may not have stepped
V-ing perfect
I may not have been stepping you may not have been stepping he may not have been stepping we may not have been stepping you may not have been stepping they may not have been stepping
Interrogative form
Simple form
may I step? may you step? may he step? may we step? may you step? may they step?
V-ing form
may I be stepping? may you be stepping? may he be stepping? may we be stepping? may you be stepping? may they be stepping?
Perfect
may I have stepped? may you have stepped? may he have stepped? may we have stepped? may you have stepped? may they have stepped?
V-ing perfect
may I have been stepping? may you have been stepping? may he have been stepping? may we have been stepping? may you have been stepping? may they have been stepping?
Interro-negative form
Simple form
may I not step? may you not step? may he not step? may we not step? may you not step? may they not step?
V-ing form
may I not be stepping? may you not be stepping? may he not be stepping? may we not be stepping? may you not be stepping? may they not be stepping?
Perfect
may I not have stepped? may you not have stepped? may he not have stepped? may we not have stepped? may you not have stepped? may they not have stepped?
V-ing perfect
may I not have been stepping? may you not have been stepping? may he not have been stepping? may we not have been stepping? may you not have been stepping? may they not have been stepping?