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 she 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 she 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 she 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 she 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 she 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 she 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 she 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 she 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 she 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 she 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 she 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 she 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 she 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 she 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 she 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 she 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?