English verb conjugation
SHOULD PREPARE

Regular verb: prepare - prepared - prepared

Affirmation

Simple form	V-ing form
I'd prepare you'd prepare he'd prepare we'd prepare you'd prepare they'd prepare	I'd be preparing you'd be preparing he'd be preparing we'd be preparing you'd be preparing they'd be preparing
Perfect	V-ing perfect
I should've prepared you should've prepared he should've prepared we should've prepared you should've prepared they should've prepared	I should've been preparing you should've been preparing he should've been preparing we should've been preparing you should've been preparing they should've been preparing

Negation

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

Interrogative form

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

Interro-negative form

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