ought to snigger
Regular verb: snigger - sniggered- sniggered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to snigger
you ought to snigger
she ought to snigger
we ought to snigger
you ought to snigger
they ought to snigger 	I ought to be sniggering
you ought to be sniggering
she ought to be sniggering
we ought to be sniggering
you ought to be sniggering
they ought to be sniggering	I ought to have sniggered
you ought to have sniggered
she ought to have sniggered
we ought to have sniggered
you ought to have sniggered
they ought to have sniggered	I ought to have been sniggering
you ought to have been sniggering
she ought to have been sniggering
we ought to have been sniggering
you ought to have been sniggering
they ought to have been sniggering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought not to snigger
you ought not to snigger
she ought not to snigger
we ought not to snigger
you ought not to snigger
they ought not to snigger 	I ought not to sniggering
you ought not to sniggering
she ought not to sniggering
we ought not to sniggering
you ought not to sniggering
they ought not to sniggering	I ought not to have sniggered
you ought not to have sniggered
she ought not to have sniggered
we ought not to have sniggered
you ought not to have sniggered
they ought not to have sniggered	I ought not to have been sniggering
you ought not to have been sniggering
she ought not to have been sniggering
we ought not to have been sniggering
you ought not to have been sniggering
they ought not to have been sniggering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I snigger?
ought to you snigger?
ought to she snigger?
ought to we snigger?
ought to you snigger?
ought to they snigger? 	ought to I be sniggering?
ought to you be sniggering?
ought to she be sniggering?
ought to we be sniggering?
ought to you be sniggering?
ought to they be sniggering? 	ought to I have sniggered?
ought to you have sniggered?
ought to she have sniggered?
ought to we have sniggered?
ought to you have sniggered?
ought to they have sniggered? 	ought to I have been sniggering?
ought to you have been sniggering?
ought to she have been sniggering?
ought to we have been sniggering?
ought to you have been sniggering?
ought to they have been sniggering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought I not to snigger?
ought you not to snigger?
ought she not to snigger?
ought we not to snigger?
ought you not to snigger?
ought they not to snigger? 	ought I not to be sniggering?
ought you not to be sniggering?
ought she not to be sniggering?
ought we not to be sniggering?
ought you not to be sniggering?
ought they not to be sniggering? 	ought I not to have sniggered?
ought you not to have sniggered?
ought she not to have sniggered?
ought we not to have sniggered?
ought you not to have sniggered?
ought they not to have sniggered? 	ought I not to have been sniggering?
ought you not to have been sniggering?
ought she not to have been sniggering?
ought we not to have been sniggering?
ought you not to have been sniggering?
ought they not to have been sniggering?