English verb conjugation
OUGHT TO LIGHTEN

Regular verb: lighten - lightened - lightened

Affirmation

Simple form	V-ing form
I ought to lighten you ought to lighten she ought to lighten we ought to lighten you ought to lighten they ought to lighten	I ought to be lightening you ought to be lightening she ought to be lightening we ought to be lightening you ought to be lightening they ought to be lightening
Perfect	V-ing perfect
I ought to have lightened you ought to have lightened she ought to have lightened we ought to have lightened you ought to have lightened they ought to have lightened	I ought to have been lightening you ought to have been lightening she ought to have been lightening we ought to have been lightening you ought to have been lightening they ought to have been lightening

Negation

Simple form	V-ing form
I oughtn't to lighten you oughtn't to lighten she oughtn't to lighten we oughtn't to lighten you oughtn't to lighten they oughtn't to lighten	I oughtn't to be lightening you oughtn't to be lightening she oughtn't to be lightening we oughtn't to be lightening you oughtn't to be lightening they oughtn't to be lightening
Perfect	V-ing perfect
I oughtn't to have lightened you oughtn't to have lightened she oughtn't to have lightened we oughtn't to have lightened you oughtn't to have lightened they oughtn't to have lightened	I oughtn't to have been lightening you oughtn't to have been lightening she oughtn't to have been lightening we oughtn't to have been lightening you oughtn't to have been lightening they oughtn't to have been lightening

Interrogative form

Simple form	V-ing form
ought to I lighten? ought to you lighten? ought to she lighten? ought to we lighten? ought to you lighten? ought to they lighten?	ought to I be lightening? ought to you be lightening? ought to she be lightening? ought to we be lightening? ought to you be lightening? ought to they be lightening?
Perfect	V-ing perfect
ought to I have lightened? ought to you have lightened? ought to she have lightened? ought to we have lightened? ought to you have lightened? ought to they have lightened?	ought to I have been lightening? ought to you have been lightening? ought to she have been lightening? ought to we have been lightening? ought to you have been lightening? ought to they have been lightening?

Interro-negative form

Simple form	V-ing form
oughtn't I to lighten? oughtn't you to lighten? oughtn't she to lighten? oughtn't we to lighten? oughtn't you to lighten? oughtn't they to lighten?	oughtn't I to be lightening? oughtn't you to be lightening? oughtn't she to be lightening? oughtn't we to be lightening? oughtn't you to be lightening? oughtn't they to be lightening?
Perfect	V-ing perfect
oughtn't I to have lightened? oughtn't you to have lightened? oughtn't she to have lightened? oughtn't we to have lightened? oughtn't you to have lightened? oughtn't they to have lightened?	oughtn't I to have been lightening? oughtn't you to have been lightening? oughtn't she to have been lightening? oughtn't we to have been lightening? oughtn't you to have been lightening? oughtn't they to have been lightening?