ought to extinguish
Regular verb: extinguish - extinguished- extinguished

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to extinguish
you ought to extinguish
he ought to extinguish
we ought to extinguish
you ought to extinguish
they ought to extinguish 	I ought to be extinguishing
you ought to be extinguishing
he ought to be extinguishing
we ought to be extinguishing
you ought to be extinguishing
they ought to be extinguishing	I ought to have extinguished
you ought to have extinguished
he ought to have extinguished
we ought to have extinguished
you ought to have extinguished
they ought to have extinguished	I ought to have been extinguishing
you ought to have been extinguishing
he ought to have been extinguishing
we ought to have been extinguishing
you ought to have been extinguishing
they ought to have been extinguishing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to extinguish
you oughtn't to extinguish
he oughtn't to extinguish
we oughtn't to extinguish
you oughtn't to extinguish
they oughtn't to extinguish 	I oughtn't to be extinguishing
you oughtn't to be extinguishing
he oughtn't to be extinguishing
we oughtn't to be extinguishing
you oughtn't to be extinguishing
they oughtn't to be extinguishing	I oughtn't to have extinguished
you oughtn't to have extinguished
he oughtn't to have extinguished
we oughtn't to have extinguished
you oughtn't to have extinguished
they oughtn't to have extinguished	I oughtn't to have been extinguishing
you oughtn't to have been extinguishing
he oughtn't to have been extinguishing
we oughtn't to have been extinguishing
you oughtn't to have been extinguishing
they oughtn't to have been extinguishing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I extinguish?
ought to you extinguish?
ought to he extinguish?
ought to we extinguish?
ought to you extinguish?
ought to they extinguish? 	ought to I be extinguishing?
ought to you be extinguishing?
ought to he be extinguishing?
ought to we be extinguishing?
ought to you be extinguishing?
ought to they be extinguishing? 	ought to I have extinguished?
ought to you have extinguished?
ought to he have extinguished?
ought to we have extinguished?
ought to you have extinguished?
ought to they have extinguished? 	ought to I have been extinguishing?
ought to you have been extinguishing?
ought to he have been extinguishing?
ought to we have been extinguishing?
ought to you have been extinguishing?
ought to they have been extinguishing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to extinguish?
oughtn't you to extinguish?
oughtn't he to extinguish?
oughtn't we to extinguish?
oughtn't you to extinguish?
oughtn't they to extinguish? 	oughtn't I to be extinguishing?
oughtn't you to be extinguishing?
oughtn't he to be extinguishing?
oughtn't we to be extinguishing?
oughtn't you to be extinguishing?
oughtn't they to be extinguishing? 	oughtn't I to have extinguished?
oughtn't you to have extinguished?
oughtn't he to have extinguished?
oughtn't we to have extinguished?
oughtn't you to have extinguished?
oughtn't they to have extinguished? 	oughtn't I to have been extinguishing?
oughtn't you to have been extinguishing?
oughtn't he to have been extinguishing?
oughtn't we to have been extinguishing?
oughtn't you to have been extinguishing?
oughtn't they to have been extinguishing?