I may excise you may excise he may excise we may excise you may excise they may excise
V-ing form
I may be excising you may be excising he may be excising we may be excising you may be excising they may be excising
Perfect
I may have excised you may have excised he may have excised we may have excised you may have excised they may have excised
V-ing perfect
I may have been excising you may have been excising he may have been excising we may have been excising you may have been excising they may have been excising
Negation
Simple form
I may not excise you may not excise he may not excise we may not excise you may not excise they may not excise
V-ing form
I may not be excising you may not be excising he may not be excising we may not be excising you may not be excising they may not be excising
Perfect
I may not have excised you may not have excised he may not have excised we may not have excised you may not have excised they may not have excised
V-ing perfect
I may not have been excising you may not have been excising he may not have been excising we may not have been excising you may not have been excising they may not have been excising
Interrogative form
Simple form
may I excise? may you excise? may he excise? may we excise? may you excise? may they excise?
V-ing form
may I be excising? may you be excising? may he be excising? may we be excising? may you be excising? may they be excising?
Perfect
may I have excised? may you have excised? may he have excised? may we have excised? may you have excised? may they have excised?
V-ing perfect
may I have been excising? may you have been excising? may he have been excising? may we have been excising? may you have been excising? may they have been excising?
Interro-negative form
Simple form
may I not excise? may you not excise? may he not excise? may we not excise? may you not excise? may they not excise?
V-ing form
may I not be excising? may you not be excising? may he not be excising? may we not be excising? may you not be excising? may they not be excising?
Perfect
may I not have excised? may you not have excised? may he not have excised? may we not have excised? may you not have excised? may they not have excised?
V-ing perfect
may I not have been excising? may you not have been excising? may he not have been excising? may we not have been excising? may you not have been excising? may they not have been excising?