ought to snuff
Regular verb: snuff - snuffed- snuffed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to snuff
you ought to snuff
he ought to snuff
we ought to snuff
you ought to snuff
they ought to snuff 	I ought to be snuffing
you ought to be snuffing
he ought to be snuffing
we ought to be snuffing
you ought to be snuffing
they ought to be snuffing	I ought to have snuffed
you ought to have snuffed
he ought to have snuffed
we ought to have snuffed
you ought to have snuffed
they ought to have snuffed	I ought to have been snuffing
you ought to have been snuffing
he ought to have been snuffing
we ought to have been snuffing
you ought to have been snuffing
they ought to have been snuffing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to snuff
you oughtn't to snuff
he oughtn't to snuff
we oughtn't to snuff
you oughtn't to snuff
they oughtn't to snuff 	I oughtn't to be snuffing
you oughtn't to be snuffing
he oughtn't to be snuffing
we oughtn't to be snuffing
you oughtn't to be snuffing
they oughtn't to be snuffing	I oughtn't to have snuffed
you oughtn't to have snuffed
he oughtn't to have snuffed
we oughtn't to have snuffed
you oughtn't to have snuffed
they oughtn't to have snuffed	I oughtn't to have been snuffing
you oughtn't to have been snuffing
he oughtn't to have been snuffing
we oughtn't to have been snuffing
you oughtn't to have been snuffing
they oughtn't to have been snuffing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I snuff?
ought to you snuff?
ought to he snuff?
ought to we snuff?
ought to you snuff?
ought to they snuff? 	ought to I be snuffing?
ought to you be snuffing?
ought to he be snuffing?
ought to we be snuffing?
ought to you be snuffing?
ought to they be snuffing? 	ought to I have snuffed?
ought to you have snuffed?
ought to he have snuffed?
ought to we have snuffed?
ought to you have snuffed?
ought to they have snuffed? 	ought to I have been snuffing?
ought to you have been snuffing?
ought to he have been snuffing?
ought to we have been snuffing?
ought to you have been snuffing?
ought to they have been snuffing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to snuff?
oughtn't you to snuff?
oughtn't he to snuff?
oughtn't we to snuff?
oughtn't you to snuff?
oughtn't they to snuff? 	oughtn't I to be snuffing?
oughtn't you to be snuffing?
oughtn't he to be snuffing?
oughtn't we to be snuffing?
oughtn't you to be snuffing?
oughtn't they to be snuffing? 	oughtn't I to have snuffed?
oughtn't you to have snuffed?
oughtn't he to have snuffed?
oughtn't we to have snuffed?
oughtn't you to have snuffed?
oughtn't they to have snuffed? 	oughtn't I to have been snuffing?
oughtn't you to have been snuffing?
oughtn't he to have been snuffing?
oughtn't we to have been snuffing?
oughtn't you to have been snuffing?
oughtn't they to have been snuffing?