English verb conjugation
OUGHT TO BRIGHTEN

Regular verb: brighten - brightened - brightened

Affirmation

Simple form	V-ing form
I ought to brighten you ought to brighten he 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 he ought to be brightening we ought to be brightening you ought to be brightening they ought to be brightening
Perfect	V-ing perfect
I ought to have brightened you ought to have brightened he 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 he 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
I oughtn't to brighten you oughtn't to brighten he 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 he oughtn't to be brightening we oughtn't to be brightening you oughtn't to be brightening they oughtn't to be brightening
Perfect	V-ing perfect
I oughtn't to have brightened you oughtn't to have brightened he 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 he 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
ought to I brighten? ought to you brighten? ought to he 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 he be brightening? ought to we be brightening? ought to you be brightening? ought to they be brightening?
Perfect	V-ing perfect
ought to I have brightened? ought to you have brightened? ought to he 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 he 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
oughtn't I to brighten? oughtn't you to brighten? oughtn't he 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 he to be brightening? oughtn't we to be brightening? oughtn't you to be brightening? oughtn't they to be brightening?
Perfect	V-ing perfect
oughtn't I to have brightened? oughtn't you to have brightened? oughtn't he 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 he 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?