ought to differ
Regular verb: differ - differed- differed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to differ
you ought to differ
she ought to differ
we ought to differ
you ought to differ
they ought to differ 	I ought to be differing
you ought to be differing
she ought to be differing
we ought to be differing
you ought to be differing
they ought to be differing	I ought to have differed
you ought to have differed
she ought to have differed
we ought to have differed
you ought to have differed
they ought to have differed	I ought to have been differing
you ought to have been differing
she ought to have been differing
we ought to have been differing
you ought to have been differing
they ought to have been differing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought not to differ
you ought not to differ
she ought not to differ
we ought not to differ
you ought not to differ
they ought not to differ 	I ought not to differing
you ought not to differing
she ought not to differing
we ought not to differing
you ought not to differing
they ought not to differing	I ought not to have differed
you ought not to have differed
she ought not to have differed
we ought not to have differed
you ought not to have differed
they ought not to have differed	I ought not to have been differing
you ought not to have been differing
she ought not to have been differing
we ought not to have been differing
you ought not to have been differing
they ought not to have been differing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I differ?
ought to you differ?
ought to she differ?
ought to we differ?
ought to you differ?
ought to they differ? 	ought to I be differing?
ought to you be differing?
ought to she be differing?
ought to we be differing?
ought to you be differing?
ought to they be differing? 	ought to I have differed?
ought to you have differed?
ought to she have differed?
ought to we have differed?
ought to you have differed?
ought to they have differed? 	ought to I have been differing?
ought to you have been differing?
ought to she have been differing?
ought to we have been differing?
ought to you have been differing?
ought to they have been differing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought I not to differ?
ought you not to differ?
ought she not to differ?
ought we not to differ?
ought you not to differ?
ought they not to differ? 	ought I not to be differing?
ought you not to be differing?
ought she not to be differing?
ought we not to be differing?
ought you not to be differing?
ought they not to be differing? 	ought I not to have differed?
ought you not to have differed?
ought she not to have differed?
ought we not to have differed?
ought you not to have differed?
ought they not to have differed? 	ought I not to have been differing?
ought you not to have been differing?
ought she not to have been differing?
ought we not to have been differing?
ought you not to have been differing?
ought they not to have been differing?