I ought to snuff you ought to snuff he ought to snuff we ought to snuff you ought to snuff they ought to snuff
V-ing form
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
Perfect
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
V-ing perfect
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
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
V-ing form
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
Perfect
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
V-ing perfect
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
ought to I snuff? ought to you snuff? ought to he snuff? ought to we snuff? ought to you snuff? ought to they snuff?
V-ing form
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?
Perfect
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?
V-ing perfect
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
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?
V-ing form
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?
Perfect
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?
V-ing perfect
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?