ought to ken
Regular verb: ken - kened- kened

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to ken
you ought to ken
he ought to ken
we ought to ken
you ought to ken
they ought to ken 	I ought to be kening
you ought to be kening
he ought to be kening
we ought to be kening
you ought to be kening
they ought to be kening	I ought to have kened
you ought to have kened
he ought to have kened
we ought to have kened
you ought to have kened
they ought to have kened	I ought to have been kening
you ought to have been kening
he ought to have been kening
we ought to have been kening
you ought to have been kening
they ought to have been kening	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to ken
you oughtn't to ken
he oughtn't to ken
we oughtn't to ken
you oughtn't to ken
they oughtn't to ken 	I oughtn't to be kening
you oughtn't to be kening
he oughtn't to be kening
we oughtn't to be kening
you oughtn't to be kening
they oughtn't to be kening	I oughtn't to have kened
you oughtn't to have kened
he oughtn't to have kened
we oughtn't to have kened
you oughtn't to have kened
they oughtn't to have kened	I oughtn't to have been kening
you oughtn't to have been kening
he oughtn't to have been kening
we oughtn't to have been kening
you oughtn't to have been kening
they oughtn't to have been kening	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I ken?
ought to you ken?
ought to he ken?
ought to we ken?
ought to you ken?
ought to they ken? 	ought to I be kening?
ought to you be kening?
ought to he be kening?
ought to we be kening?
ought to you be kening?
ought to they be kening? 	ought to I have kened?
ought to you have kened?
ought to he have kened?
ought to we have kened?
ought to you have kened?
ought to they have kened? 	ought to I have been kening?
ought to you have been kening?
ought to he have been kening?
ought to we have been kening?
ought to you have been kening?
ought to they have been kening? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to ken?
oughtn't you to ken?
oughtn't he to ken?
oughtn't we to ken?
oughtn't you to ken?
oughtn't they to ken? 	oughtn't I to be kening?
oughtn't you to be kening?
oughtn't he to be kening?
oughtn't we to be kening?
oughtn't you to be kening?
oughtn't they to be kening? 	oughtn't I to have kened?
oughtn't you to have kened?
oughtn't he to have kened?
oughtn't we to have kened?
oughtn't you to have kened?
oughtn't they to have kened? 	oughtn't I to have been kening?
oughtn't you to have been kening?
oughtn't he to have been kening?
oughtn't we to have been kening?
oughtn't you to have been kening?
oughtn't they to have been kening?