I may undergo you may undergo he may undergo we may undergo you may undergo they may undergo
V-ing form
I may be undergoing you may be undergoing he may be undergoing we may be undergoing you may be undergoing they may be undergoing
Perfect
I may have undergone you may have undergone he may have undergone we may have undergone you may have undergone they may have undergone
V-ing perfect
I may have been undergoing you may have been undergoing he may have been undergoing we may have been undergoing you may have been undergoing they may have been undergoing
Negation
Simple form
I may not undergo you may not undergo he may not undergo we may not undergo you may not undergo they may not undergo
V-ing form
I may not be undergoing you may not be undergoing he may not be undergoing we may not be undergoing you may not be undergoing they may not be undergoing
Perfect
I may not have undergone you may not have undergone he may not have undergone we may not have undergone you may not have undergone they may not have undergone
V-ing perfect
I may not have been undergoing you may not have been undergoing he may not have been undergoing we may not have been undergoing you may not have been undergoing they may not have been undergoing
Interrogative form
Simple form
may I undergo? may you undergo? may he undergo? may we undergo? may you undergo? may they undergo?
V-ing form
may I be undergoing? may you be undergoing? may he be undergoing? may we be undergoing? may you be undergoing? may they be undergoing?
Perfect
may I have undergone? may you have undergone? may he have undergone? may we have undergone? may you have undergone? may they have undergone?
V-ing perfect
may I have been undergoing? may you have been undergoing? may he have been undergoing? may we have been undergoing? may you have been undergoing? may they have been undergoing?
Interro-negative form
Simple form
may I not undergo? may you not undergo? may he not undergo? may we not undergo? may you not undergo? may they not undergo?
V-ing form
may I not be undergoing? may you not be undergoing? may he not be undergoing? may we not be undergoing? may you not be undergoing? may they not be undergoing?
Perfect
may I not have undergone? may you not have undergone? may he not have undergone? may we not have undergone? may you not have undergone? may they not have undergone?
V-ing perfect
may I not have been undergoing? may you not have been undergoing? may he not have been undergoing? may we not have been undergoing? may you not have been undergoing? may they not have been undergoing?