ought to brighten
Regular verb: brighten - brightened- brightened

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to brighten
you ought to brighten
she ought to brighten
we ought to brighten
you ought to brighten
they ought to brighten 	I ought to be brightening
you ought to be brightening
she ought to be brightening
we ought to be brightening
you ought to be brightening
they ought to be brightening	I ought to have brightened
you ought to have brightened
she ought to have brightened
we ought to have brightened
you ought to have brightened
they ought to have brightened	I ought to have been brightening
you ought to have been brightening
she ought to have been brightening
we ought to have been brightening
you ought to have been brightening
they ought to have been brightening	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to brighten
you oughtn't to brighten
she oughtn't to brighten
we oughtn't to brighten
you oughtn't to brighten
they oughtn't to brighten 	I oughtn't to be brightening
you oughtn't to be brightening
she oughtn't to be brightening
we oughtn't to be brightening
you oughtn't to be brightening
they oughtn't to be brightening	I oughtn't to have brightened
you oughtn't to have brightened
she oughtn't to have brightened
we oughtn't to have brightened
you oughtn't to have brightened
they oughtn't to have brightened	I oughtn't to have been brightening
you oughtn't to have been brightening
she oughtn't to have been brightening
we oughtn't to have been brightening
you oughtn't to have been brightening
they oughtn't to have been brightening	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I brighten?
ought to you brighten?
ought to she brighten?
ought to we brighten?
ought to you brighten?
ought to they brighten? 	ought to I be brightening?
ought to you be brightening?
ought to she be brightening?
ought to we be brightening?
ought to you be brightening?
ought to they be brightening? 	ought to I have brightened?
ought to you have brightened?
ought to she have brightened?
ought to we have brightened?
ought to you have brightened?
ought to they have brightened? 	ought to I have been brightening?
ought to you have been brightening?
ought to she have been brightening?
ought to we have been brightening?
ought to you have been brightening?
ought to they have been brightening? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to brighten?
oughtn't you to brighten?
oughtn't she to brighten?
oughtn't we to brighten?
oughtn't you to brighten?
oughtn't they to brighten? 	oughtn't I to be brightening?
oughtn't you to be brightening?
oughtn't she to be brightening?
oughtn't we to be brightening?
oughtn't you to be brightening?
oughtn't they to be brightening? 	oughtn't I to have brightened?
oughtn't you to have brightened?
oughtn't she to have brightened?
oughtn't we to have brightened?
oughtn't you to have brightened?
oughtn't they to have brightened? 	oughtn't I to have been brightening?
oughtn't you to have been brightening?
oughtn't she to have been brightening?
oughtn't we to have been brightening?
oughtn't you to have been brightening?
oughtn't they to have been brightening?