I may stuff you may stuff he may stuff we may stuff you may stuff they may stuff
V-ing form
I may be stuffing you may be stuffing he may be stuffing we may be stuffing you may be stuffing they may be stuffing
Perfect
I may have stuffed you may have stuffed he may have stuffed we may have stuffed you may have stuffed they may have stuffed
V-ing perfect
I may have been stuffing you may have been stuffing he may have been stuffing we may have been stuffing you may have been stuffing they may have been stuffing
Negation
Simple form
I may not stuff you may not stuff he may not stuff we may not stuff you may not stuff they may not stuff
V-ing form
I may not be stuffing you may not be stuffing he may not be stuffing we may not be stuffing you may not be stuffing they may not be stuffing
Perfect
I may not have stuffed you may not have stuffed he may not have stuffed we may not have stuffed you may not have stuffed they may not have stuffed
V-ing perfect
I may not have been stuffing you may not have been stuffing he may not have been stuffing we may not have been stuffing you may not have been stuffing they may not have been stuffing
Interrogative form
Simple form
may I stuff? may you stuff? may he stuff? may we stuff? may you stuff? may they stuff?
V-ing form
may I be stuffing? may you be stuffing? may he be stuffing? may we be stuffing? may you be stuffing? may they be stuffing?
Perfect
may I have stuffed? may you have stuffed? may he have stuffed? may we have stuffed? may you have stuffed? may they have stuffed?
V-ing perfect
may I have been stuffing? may you have been stuffing? may he have been stuffing? may we have been stuffing? may you have been stuffing? may they have been stuffing?
Interro-negative form
Simple form
may I not stuff? may you not stuff? may he not stuff? may we not stuff? may you not stuff? may they not stuff?
V-ing form
may I not be stuffing? may you not be stuffing? may he not be stuffing? may we not be stuffing? may you not be stuffing? may they not be stuffing?
Perfect
may I not have stuffed? may you not have stuffed? may he not have stuffed? may we not have stuffed? may you not have stuffed? may they not have stuffed?
V-ing perfect
may I not have been stuffing? may you not have been stuffing? may he not have been stuffing? may we not have been stuffing? may you not have been stuffing? may they not have been stuffing?