I may punch you may punch he may punch we may punch you may punch they may punch
V-ing form
I may be punching you may be punching he may be punching we may be punching you may be punching they may be punching
Perfect
I may have punched you may have punched he may have punched we may have punched you may have punched they may have punched
V-ing perfect
I may have been punching you may have been punching he may have been punching we may have been punching you may have been punching they may have been punching
Negation
Simple form
I may not punch you may not punch he may not punch we may not punch you may not punch they may not punch
V-ing form
I may not be punching you may not be punching he may not be punching we may not be punching you may not be punching they may not be punching
Perfect
I may not have punched you may not have punched he may not have punched we may not have punched you may not have punched they may not have punched
V-ing perfect
I may not have been punching you may not have been punching he may not have been punching we may not have been punching you may not have been punching they may not have been punching
Interrogative form
Simple form
may I punch? may you punch? may he punch? may we punch? may you punch? may they punch?
V-ing form
may I be punching? may you be punching? may he be punching? may we be punching? may you be punching? may they be punching?
Perfect
may I have punched? may you have punched? may he have punched? may we have punched? may you have punched? may they have punched?
V-ing perfect
may I have been punching? may you have been punching? may he have been punching? may we have been punching? may you have been punching? may they have been punching?
Interro-negative form
Simple form
may I not punch? may you not punch? may he not punch? may we not punch? may you not punch? may they not punch?
V-ing form
may I not be punching? may you not be punching? may he not be punching? may we not be punching? may you not be punching? may they not be punching?
Perfect
may I not have punched? may you not have punched? may he not have punched? may we not have punched? may you not have punched? may they not have punched?
V-ing perfect
may I not have been punching? may you not have been punching? may he not have been punching? may we not have been punching? may you not have been punching? may they not have been punching?