English verb conjugation
OUGHT TO UNDERGO

Irregular verb: undergo - underwent - undergone

Affirmation

Simple form	V-ing form
I ought to undergo you ought to undergo he ought to undergo we ought to undergo you ought to undergo they ought to undergo	I ought to be undergoing you ought to be undergoing he ought to be undergoing we ought to be undergoing you ought to be undergoing they ought to be undergoing
Perfect	V-ing perfect
I ought to have undergone you ought to have undergone he ought to have undergone we ought to have undergone you ought to have undergone they ought to have undergone	I ought to have been undergoing you ought to have been undergoing he ought to have been undergoing we ought to have been undergoing you ought to have been undergoing they ought to have been undergoing

Negation

Simple form	V-ing form
I ought not to undergo you ought not to undergo he ought not to undergo we ought not to undergo you ought not to undergo they ought not to undergo	I ought not to undergoing you ought not to undergoing he ought not to undergoing we ought not to undergoing you ought not to undergoing they ought not to undergoing
Perfect	V-ing perfect
I ought not to have undergone you ought not to have undergone he ought not to have undergone we ought not to have undergone you ought not to have undergone they ought not to have undergone	I ought not to have been undergoing you ought not to have been undergoing he ought not to have been undergoing we ought not to have been undergoing you ought not to have been undergoing they ought not to have been undergoing

Interrogative form

Simple form	V-ing form
ought to I undergo? ought to you undergo? ought to he undergo? ought to we undergo? ought to you undergo? ought to they undergo?	ought to I be undergoing? ought to you be undergoing? ought to he be undergoing? ought to we be undergoing? ought to you be undergoing? ought to they be undergoing?
Perfect	V-ing perfect
ought to I have undergone? ought to you have undergone? ought to he have undergone? ought to we have undergone? ought to you have undergone? ought to they have undergone?	ought to I have been undergoing? ought to you have been undergoing? ought to he have been undergoing? ought to we have been undergoing? ought to you have been undergoing? ought to they have been undergoing?

Interro-negative form

Simple form	V-ing form
ought I not to undergo? ought you not to undergo? ought he not to undergo? ought we not to undergo? ought you not to undergo? ought they not to undergo?	ought I not to be undergoing? ought you not to be undergoing? ought he not to be undergoing? ought we not to be undergoing? ought you not to be undergoing? ought they not to be undergoing?
Perfect	V-ing perfect
ought I not to have undergone? ought you not to have undergone? ought he not to have undergone? ought we not to have undergone? ought you not to have undergone? ought they not to have undergone?	ought I not to have been undergoing? ought you not to have been undergoing? ought he not to have been undergoing? ought we not to have been undergoing? ought you not to have been undergoing? ought they not to have been undergoing?