English verb conjugation
OUGHT TO SNIFF

Regular verb: sniff - sniffed - sniffed

Affirmation

Simple form	V-ing form
I ought to sniff you ought to sniff he ought to sniff we ought to sniff you ought to sniff they ought to sniff	I ought to be sniffing you ought to be sniffing he ought to be sniffing we ought to be sniffing you ought to be sniffing they ought to be sniffing
Perfect	V-ing perfect
I ought to have sniffed you ought to have sniffed he ought to have sniffed we ought to have sniffed you ought to have sniffed they ought to have sniffed	I ought to have been sniffing you ought to have been sniffing he ought to have been sniffing we ought to have been sniffing you ought to have been sniffing they ought to have been sniffing

Negation

Simple form	V-ing form
I oughtn't to sniff you oughtn't to sniff he oughtn't to sniff we oughtn't to sniff you oughtn't to sniff they oughtn't to sniff	I oughtn't to be sniffing you oughtn't to be sniffing he oughtn't to be sniffing we oughtn't to be sniffing you oughtn't to be sniffing they oughtn't to be sniffing
Perfect	V-ing perfect
I oughtn't to have sniffed you oughtn't to have sniffed he oughtn't to have sniffed we oughtn't to have sniffed you oughtn't to have sniffed they oughtn't to have sniffed	I oughtn't to have been sniffing you oughtn't to have been sniffing he oughtn't to have been sniffing we oughtn't to have been sniffing you oughtn't to have been sniffing they oughtn't to have been sniffing

Interrogative form

Simple form	V-ing form
ought to I sniff? ought to you sniff? ought to he sniff? ought to we sniff? ought to you sniff? ought to they sniff?	ought to I be sniffing? ought to you be sniffing? ought to he be sniffing? ought to we be sniffing? ought to you be sniffing? ought to they be sniffing?
Perfect	V-ing perfect
ought to I have sniffed? ought to you have sniffed? ought to he have sniffed? ought to we have sniffed? ought to you have sniffed? ought to they have sniffed?	ought to I have been sniffing? ought to you have been sniffing? ought to he have been sniffing? ought to we have been sniffing? ought to you have been sniffing? ought to they have been sniffing?

Interro-negative form

Simple form	V-ing form
oughtn't I to sniff? oughtn't you to sniff? oughtn't he to sniff? oughtn't we to sniff? oughtn't you to sniff? oughtn't they to sniff?	oughtn't I to be sniffing? oughtn't you to be sniffing? oughtn't he to be sniffing? oughtn't we to be sniffing? oughtn't you to be sniffing? oughtn't they to be sniffing?
Perfect	V-ing perfect
oughtn't I to have sniffed? oughtn't you to have sniffed? oughtn't he to have sniffed? oughtn't we to have sniffed? oughtn't you to have sniffed? oughtn't they to have sniffed?	oughtn't I to have been sniffing? oughtn't you to have been sniffing? oughtn't he to have been sniffing? oughtn't we to have been sniffing? oughtn't you to have been sniffing? oughtn't they to have been sniffing?