English verb conjugation
OUGHT TO HEIGHTEN

Regular verb: heighten - heightened - heightened

Affirmation

Simple form	V-ing form
I ought to heighten you ought to heighten she ought to heighten we ought to heighten you ought to heighten they ought to heighten	I ought to be heightening you ought to be heightening she ought to be heightening we ought to be heightening you ought to be heightening they ought to be heightening
Perfect	V-ing perfect
I ought to have heightened you ought to have heightened she ought to have heightened we ought to have heightened you ought to have heightened they ought to have heightened	I ought to have been heightening you ought to have been heightening she ought to have been heightening we ought to have been heightening you ought to have been heightening they ought to have been heightening

Negation

Simple form	V-ing form
I oughtn't to heighten you oughtn't to heighten she oughtn't to heighten we oughtn't to heighten you oughtn't to heighten they oughtn't to heighten	I oughtn't to be heightening you oughtn't to be heightening she oughtn't to be heightening we oughtn't to be heightening you oughtn't to be heightening they oughtn't to be heightening
Perfect	V-ing perfect
I oughtn't to have heightened you oughtn't to have heightened she oughtn't to have heightened we oughtn't to have heightened you oughtn't to have heightened they oughtn't to have heightened	I oughtn't to have been heightening you oughtn't to have been heightening she oughtn't to have been heightening we oughtn't to have been heightening you oughtn't to have been heightening they oughtn't to have been heightening

Interrogative form

Simple form	V-ing form
ought to I heighten? ought to you heighten? ought to she heighten? ought to we heighten? ought to you heighten? ought to they heighten?	ought to I be heightening? ought to you be heightening? ought to she be heightening? ought to we be heightening? ought to you be heightening? ought to they be heightening?
Perfect	V-ing perfect
ought to I have heightened? ought to you have heightened? ought to she have heightened? ought to we have heightened? ought to you have heightened? ought to they have heightened?	ought to I have been heightening? ought to you have been heightening? ought to she have been heightening? ought to we have been heightening? ought to you have been heightening? ought to they have been heightening?

Interro-negative form

Simple form	V-ing form
oughtn't I to heighten? oughtn't you to heighten? oughtn't she to heighten? oughtn't we to heighten? oughtn't you to heighten? oughtn't they to heighten?	oughtn't I to be heightening? oughtn't you to be heightening? oughtn't she to be heightening? oughtn't we to be heightening? oughtn't you to be heightening? oughtn't they to be heightening?
Perfect	V-ing perfect
oughtn't I to have heightened? oughtn't you to have heightened? oughtn't she to have heightened? oughtn't we to have heightened? oughtn't you to have heightened? oughtn't they to have heightened?	oughtn't I to have been heightening? oughtn't you to have been heightening? oughtn't she to have been heightening? oughtn't we to have been heightening? oughtn't you to have been heightening? oughtn't they to have been heightening?