I may prepare you may prepare he may prepare we may prepare you may prepare they may prepare
V-ing form
I may be preparing you may be preparing he may be preparing we may be preparing you may be preparing they may be preparing
Perfect
I may have prepared you may have prepared he may have prepared we may have prepared you may have prepared they may have prepared
V-ing perfect
I may have been preparing you may have been preparing he may have been preparing we may have been preparing you may have been preparing they may have been preparing
Negation
Simple form
I may not prepare you may not prepare he may not prepare we may not prepare you may not prepare they may not prepare
V-ing form
I may not be preparing you may not be preparing he may not be preparing we may not be preparing you may not be preparing they may not be preparing
Perfect
I may not have prepared you may not have prepared he may not have prepared we may not have prepared you may not have prepared they may not have prepared
V-ing perfect
I may not have been preparing you may not have been preparing he may not have been preparing we may not have been preparing you may not have been preparing they may not have been preparing
Interrogative form
Simple form
may I prepare? may you prepare? may he prepare? may we prepare? may you prepare? may they prepare?
V-ing form
may I be preparing? may you be preparing? may he be preparing? may we be preparing? may you be preparing? may they be preparing?
Perfect
may I have prepared? may you have prepared? may he have prepared? may we have prepared? may you have prepared? may they have prepared?
V-ing perfect
may I have been preparing? may you have been preparing? may he have been preparing? may we have been preparing? may you have been preparing? may they have been preparing?
Interro-negative form
Simple form
may I not prepare? may you not prepare? may he not prepare? may we not prepare? may you not prepare? may they not prepare?
V-ing form
may I not be preparing? may you not be preparing? may he not be preparing? may we not be preparing? may you not be preparing? may they not be preparing?
Perfect
may I not have prepared? may you not have prepared? may he not have prepared? may we not have prepared? may you not have prepared? may they not have prepared?
V-ing perfect
may I not have been preparing? may you not have been preparing? may he not have been preparing? may we not have been preparing? may you not have been preparing? may they not have been preparing?