ought to compare
Regular verb: compare - compared- compared

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to compare
you ought to compare
he ought to compare
we ought to compare
you ought to compare
they ought to compare 	I ought to be comparing
you ought to be comparing
he ought to be comparing
we ought to be comparing
you ought to be comparing
they ought to be comparing	I ought to have compared
you ought to have compared
he ought to have compared
we ought to have compared
you ought to have compared
they ought to have compared	I ought to have been comparing
you ought to have been comparing
he ought to have been comparing
we ought to have been comparing
you ought to have been comparing
they ought to have been comparing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to compare
you oughtn't to compare
he oughtn't to compare
we oughtn't to compare
you oughtn't to compare
they oughtn't to compare 	I oughtn't to be comparing
you oughtn't to be comparing
he oughtn't to be comparing
we oughtn't to be comparing
you oughtn't to be comparing
they oughtn't to be comparing	I oughtn't to have compared
you oughtn't to have compared
he oughtn't to have compared
we oughtn't to have compared
you oughtn't to have compared
they oughtn't to have compared	I oughtn't to have been comparing
you oughtn't to have been comparing
he oughtn't to have been comparing
we oughtn't to have been comparing
you oughtn't to have been comparing
they oughtn't to have been comparing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I compare?
ought to you compare?
ought to he compare?
ought to we compare?
ought to you compare?
ought to they compare? 	ought to I be comparing?
ought to you be comparing?
ought to he be comparing?
ought to we be comparing?
ought to you be comparing?
ought to they be comparing? 	ought to I have compared?
ought to you have compared?
ought to he have compared?
ought to we have compared?
ought to you have compared?
ought to they have compared? 	ought to I have been comparing?
ought to you have been comparing?
ought to he have been comparing?
ought to we have been comparing?
ought to you have been comparing?
ought to they have been comparing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to compare?
oughtn't you to compare?
oughtn't he to compare?
oughtn't we to compare?
oughtn't you to compare?
oughtn't they to compare? 	oughtn't I to be comparing?
oughtn't you to be comparing?
oughtn't he to be comparing?
oughtn't we to be comparing?
oughtn't you to be comparing?
oughtn't they to be comparing? 	oughtn't I to have compared?
oughtn't you to have compared?
oughtn't he to have compared?
oughtn't we to have compared?
oughtn't you to have compared?
oughtn't they to have compared? 	oughtn't I to have been comparing?
oughtn't you to have been comparing?
oughtn't he to have been comparing?
oughtn't we to have been comparing?
oughtn't you to have been comparing?
oughtn't they to have been comparing?