English verb conjugation
MAY UNDERGO

Irregular verb: undergo - underwent - undergone

Affirmation

Simple form	V-ing form
I may undergo you may undergo she may undergo we may undergo you may undergo they may undergo	I may be undergoing you may be undergoing she may be undergoing we may be undergoing you may be undergoing they may be undergoing
Perfect	V-ing perfect
I may have undergone you may have undergone she may have undergone we may have undergone you may have undergone they may have undergone	I may have been undergoing you may have been undergoing she may have been undergoing we may have been undergoing you may have been undergoing they may have been undergoing

Negation

Simple form	V-ing form
I mayn't undergo you mayn't undergo she mayn't undergo we mayn't undergo you mayn't undergo they mayn't undergo	I mayn't be undergoing you mayn't be undergoing she mayn't be undergoing we mayn't be undergoing you mayn't be undergoing they mayn't be undergoing
Perfect	V-ing perfect
I mayn't have undergone you mayn't have undergone she mayn't have undergone we mayn't have undergone you mayn't have undergone they mayn't have undergone	I mayn't have been undergoing you mayn't have been undergoing she mayn't have been undergoing we mayn't have been undergoing you mayn't have been undergoing they mayn't have been undergoing

Interrogative form

Simple form	V-ing form
may I undergo? may you undergo? may she undergo? may we undergo? may you undergo? may they undergo?	may I be undergoing? may you be undergoing? may she be undergoing? may we be undergoing? may you be undergoing? may they be undergoing?
Perfect	V-ing perfect
may I have undergone? may you have undergone? may she have undergone? may we have undergone? may you have undergone? may they have undergone?	may I have been undergoing? may you have been undergoing? may she have been undergoing? may we have been undergoing? may you have been undergoing? may they have been undergoing?

Interro-negative form

Simple form	V-ing form
mayn't I undergo? mayn't you undergo? mayn't she undergo? mayn't we undergo? mayn't you undergo? mayn't they undergo?	mayn't I be undergoing? mayn't you be undergoing? mayn't she be undergoing? mayn't we be undergoing? mayn't you be undergoing? mayn't they be undergoing?
Perfect	V-ing perfect
mayn't I have undergone? mayn't you have undergone? mayn't she have undergone? mayn't we have undergone? mayn't you have undergone? mayn't they have undergone?	mayn't I have been undergoing? mayn't you have been undergoing? mayn't she have been undergoing? mayn't we have been undergoing? mayn't you have been undergoing? mayn't they have been undergoing?