I may talk you may talk he may talk we may talk you may talk they may talk
V-ing form
I may be talking you may be talking he may be talking we may be talking you may be talking they may be talking
Perfect
I may have talked you may have talked he may have talked we may have talked you may have talked they may have talked
V-ing perfect
I may have been talking you may have been talking he may have been talking we may have been talking you may have been talking they may have been talking
Negation
Simple form
I may not talk you may not talk he may not talk we may not talk you may not talk they may not talk
V-ing form
I may not be talking you may not be talking he may not be talking we may not be talking you may not be talking they may not be talking
Perfect
I may not have talked you may not have talked he may not have talked we may not have talked you may not have talked they may not have talked
V-ing perfect
I may not have been talking you may not have been talking he may not have been talking we may not have been talking you may not have been talking they may not have been talking
Interrogative form
Simple form
may I talk? may you talk? may he talk? may we talk? may you talk? may they talk?
V-ing form
may I be talking? may you be talking? may he be talking? may we be talking? may you be talking? may they be talking?
Perfect
may I have talked? may you have talked? may he have talked? may we have talked? may you have talked? may they have talked?
V-ing perfect
may I have been talking? may you have been talking? may he have been talking? may we have been talking? may you have been talking? may they have been talking?
Interro-negative form
Simple form
may I not talk? may you not talk? may he not talk? may we not talk? may you not talk? may they not talk?
V-ing form
may I not be talking? may you not be talking? may he not be talking? may we not be talking? may you not be talking? may they not be talking?
Perfect
may I not have talked? may you not have talked? may he not have talked? may we not have talked? may you not have talked? may they not have talked?
V-ing perfect
may I not have been talking? may you not have been talking? may he not have been talking? may we not have been talking? may you not have been talking? may they not have been talking?