English verb conjugation
OUGHT TO PREPARE

Regular verb: prepare - prepared - prepared

Affirmation

Simple form	V-ing form
I ought to prepare you ought to prepare he ought to prepare we ought to prepare you ought to prepare they ought to prepare	I ought to be preparing you ought to be preparing he ought to be preparing we ought to be preparing you ought to be preparing they ought to be preparing
Perfect	V-ing perfect
I ought to have prepared you ought to have prepared he ought to have prepared we ought to have prepared you ought to have prepared they ought to have prepared	I ought to have been preparing you ought to have been preparing he ought to have been preparing we ought to have been preparing you ought to have been preparing they ought to have been preparing

Negation

Simple form	V-ing form
I oughtn't to prepare you oughtn't to prepare he oughtn't to prepare we oughtn't to prepare you oughtn't to prepare they oughtn't to prepare	I oughtn't to be preparing you oughtn't to be preparing he oughtn't to be preparing we oughtn't to be preparing you oughtn't to be preparing they oughtn't to be preparing
Perfect	V-ing perfect
I oughtn't to have prepared you oughtn't to have prepared he oughtn't to have prepared we oughtn't to have prepared you oughtn't to have prepared they oughtn't to have prepared	I oughtn't to have been preparing you oughtn't to have been preparing he oughtn't to have been preparing we oughtn't to have been preparing you oughtn't to have been preparing they oughtn't to have been preparing

Interrogative form

Simple form	V-ing form
ought to I prepare? ought to you prepare? ought to he prepare? ought to we prepare? ought to you prepare? ought to they prepare?	ought to I be preparing? ought to you be preparing? ought to he be preparing? ought to we be preparing? ought to you be preparing? ought to they be preparing?
Perfect	V-ing perfect
ought to I have prepared? ought to you have prepared? ought to he have prepared? ought to we have prepared? ought to you have prepared? ought to they have prepared?	ought to I have been preparing? ought to you have been preparing? ought to he have been preparing? ought to we have been preparing? ought to you have been preparing? ought to they have been preparing?

Interro-negative form

Simple form	V-ing form
oughtn't I to prepare? oughtn't you to prepare? oughtn't he to prepare? oughtn't we to prepare? oughtn't you to prepare? oughtn't they to prepare?	oughtn't I to be preparing? oughtn't you to be preparing? oughtn't he to be preparing? oughtn't we to be preparing? oughtn't you to be preparing? oughtn't they to be preparing?
Perfect	V-ing perfect
oughtn't I to have prepared? oughtn't you to have prepared? oughtn't he to have prepared? oughtn't we to have prepared? oughtn't you to have prepared? oughtn't they to have prepared?	oughtn't I to have been preparing? oughtn't you to have been preparing? oughtn't he to have been preparing? oughtn't we to have been preparing? oughtn't you to have been preparing? oughtn't they to have been preparing?