ought to undergo
Irregular verb: undergo - underwent- undergone

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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	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 	Perfect 	V-ing perfect 	
I oughtn't to undergo
you oughtn't to undergo
he oughtn't to undergo
we oughtn't to undergo
you oughtn't to undergo
they oughtn't to undergo 	I oughtn't to be undergoing
you oughtn't to be undergoing
he oughtn't to be undergoing
we oughtn't to be undergoing
you oughtn't to be undergoing
they oughtn't to be undergoing	I oughtn't to have undergone
you oughtn't to have undergone
he oughtn't to have undergone
we oughtn't to have undergone
you oughtn't to have undergone
they oughtn't to have undergone	I oughtn't to have been undergoing
you oughtn't to have been undergoing
he oughtn't to have been undergoing
we oughtn't to have been undergoing
you oughtn't to have been undergoing
they oughtn't to have been undergoing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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? 	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 	Perfect 	V-ing perfect 	
oughtn't I to undergo?
oughtn't you to undergo?
oughtn't he to undergo?
oughtn't we to undergo?
oughtn't you to undergo?
oughtn't they to undergo? 	oughtn't I to be undergoing?
oughtn't you to be undergoing?
oughtn't he to be undergoing?
oughtn't we to be undergoing?
oughtn't you to be undergoing?
oughtn't they to be undergoing? 	oughtn't I to have undergone?
oughtn't you to have undergone?
oughtn't he to have undergone?
oughtn't we to have undergone?
oughtn't you to have undergone?
oughtn't they to have undergone? 	oughtn't I to have been undergoing?
oughtn't you to have been undergoing?
oughtn't he to have been undergoing?
oughtn't we to have been undergoing?
oughtn't you to have been undergoing?
oughtn't they to have been undergoing?