I may believe you may believe he may believe we may believe you may believe they may believe
V-ing form
I may be believing you may be believing he may be believing we may be believing you may be believing they may be believing
Perfect
I may have believed you may have believed he may have believed we may have believed you may have believed they may have believed
V-ing perfect
I may have been believing you may have been believing he may have been believing we may have been believing you may have been believing they may have been believing
Negation
Simple form
I may not believe you may not believe he may not believe we may not believe you may not believe they may not believe
V-ing form
I may not be believing you may not be believing he may not be believing we may not be believing you may not be believing they may not be believing
Perfect
I may not have believed you may not have believed he may not have believed we may not have believed you may not have believed they may not have believed
V-ing perfect
I may not have been believing you may not have been believing he may not have been believing we may not have been believing you may not have been believing they may not have been believing
Interrogative form
Simple form
may I believe? may you believe? may he believe? may we believe? may you believe? may they believe?
V-ing form
may I be believing? may you be believing? may he be believing? may we be believing? may you be believing? may they be believing?
Perfect
may I have believed? may you have believed? may he have believed? may we have believed? may you have believed? may they have believed?
V-ing perfect
may I have been believing? may you have been believing? may he have been believing? may we have been believing? may you have been believing? may they have been believing?
Interro-negative form
Simple form
may I not believe? may you not believe? may he not believe? may we not believe? may you not believe? may they not believe?
V-ing form
may I not be believing? may you not be believing? may he not be believing? may we not be believing? may you not be believing? may they not be believing?
Perfect
may I not have believed? may you not have believed? may he not have believed? may we not have believed? may you not have believed? may they not have believed?
V-ing perfect
may I not have been believing? may you not have been believing? may he not have been believing? may we not have been believing? may you not have been believing? may they not have been believing?