English verb conjugation
CAN PREPARE

Regular verb: prepare - prepared - prepared

Affirmation

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

Negation

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

Interrogative form

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

Interro-negative form

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