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 ought not to sniff you ought not to sniff he ought not to sniff we ought not to sniff you ought not to sniff they ought not to sniff	I ought not to sniffing you ought not to sniffing he ought not to sniffing we ought not to sniffing you ought not to sniffing they ought not to sniffing
Perfect	V-ing perfect
I ought not to have sniffed you ought not to have sniffed he ought not to have sniffed we ought not to have sniffed you ought not to have sniffed they ought not to have sniffed	I ought not to have been sniffing you ought not to have been sniffing he ought not to have been sniffing we ought not to have been sniffing you ought not to have been sniffing they ought not 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
ought I not to sniff? ought you not to sniff? ought he not to sniff? ought we not to sniff? ought you not to sniff? ought they not to sniff?	ought I not to be sniffing? ought you not to be sniffing? ought he not to be sniffing? ought we not to be sniffing? ought you not to be sniffing? ought they not to be sniffing?
Perfect	V-ing perfect
ought I not to have sniffed? ought you not to have sniffed? ought he not to have sniffed? ought we not to have sniffed? ought you not to have sniffed? ought they not to have sniffed?	ought I not to have been sniffing? ought you not to have been sniffing? ought he not to have been sniffing? ought we not to have been sniffing? ought you not to have been sniffing? ought they not to have been sniffing?