ought to benefit
Regular verb: benefit - benefited- benefited

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to benefit
you ought to benefit
he ought to benefit
we ought to benefit
you ought to benefit
they ought to benefit 	I ought to be benefiting
you ought to be benefiting
he ought to be benefiting
we ought to be benefiting
you ought to be benefiting
they ought to be benefiting	I ought to have benefited
you ought to have benefited
he ought to have benefited
we ought to have benefited
you ought to have benefited
they ought to have benefited	I ought to have been benefiting
you ought to have been benefiting
he ought to have been benefiting
we ought to have been benefiting
you ought to have been benefiting
they ought to have been benefiting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to benefit
you oughtn't to benefit
he oughtn't to benefit
we oughtn't to benefit
you oughtn't to benefit
they oughtn't to benefit 	I oughtn't to be benefiting
you oughtn't to be benefiting
he oughtn't to be benefiting
we oughtn't to be benefiting
you oughtn't to be benefiting
they oughtn't to be benefiting	I oughtn't to have benefited
you oughtn't to have benefited
he oughtn't to have benefited
we oughtn't to have benefited
you oughtn't to have benefited
they oughtn't to have benefited	I oughtn't to have been benefiting
you oughtn't to have been benefiting
he oughtn't to have been benefiting
we oughtn't to have been benefiting
you oughtn't to have been benefiting
they oughtn't to have been benefiting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I benefit?
ought to you benefit?
ought to he benefit?
ought to we benefit?
ought to you benefit?
ought to they benefit? 	ought to I be benefiting?
ought to you be benefiting?
ought to he be benefiting?
ought to we be benefiting?
ought to you be benefiting?
ought to they be benefiting? 	ought to I have benefited?
ought to you have benefited?
ought to he have benefited?
ought to we have benefited?
ought to you have benefited?
ought to they have benefited? 	ought to I have been benefiting?
ought to you have been benefiting?
ought to he have been benefiting?
ought to we have been benefiting?
ought to you have been benefiting?
ought to they have been benefiting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to benefit?
oughtn't you to benefit?
oughtn't he to benefit?
oughtn't we to benefit?
oughtn't you to benefit?
oughtn't they to benefit? 	oughtn't I to be benefiting?
oughtn't you to be benefiting?
oughtn't he to be benefiting?
oughtn't we to be benefiting?
oughtn't you to be benefiting?
oughtn't they to be benefiting? 	oughtn't I to have benefited?
oughtn't you to have benefited?
oughtn't he to have benefited?
oughtn't we to have benefited?
oughtn't you to have benefited?
oughtn't they to have benefited? 	oughtn't I to have been benefiting?
oughtn't you to have been benefiting?
oughtn't he to have been benefiting?
oughtn't we to have been benefiting?
oughtn't you to have been benefiting?
oughtn't they to have been benefiting?