may believe
Regular verb: believe - believed- believed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may believe
you may believe
he may believe
we may believe
you may believe
they may believe 	I may be believing
you may be believing
he may be believing
we may be believing
you may be believing
they may be believing	I may have believed
you may have believed
he may have believed
we may have believed
you may have believed
they may have believed	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 	
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I may not believe
you may not believe
he may not believe
we may not believe
you may not believe
they may not believe 	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	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	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 	
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may I believe?
may you believe?
may he believe?
may we believe?
may you believe?
may they believe? 	may I be believing?
may you be believing?
may he be believing?
may we be believing?
may you be believing?
may they be believing? 	may I have believed?
may you have believed?
may he have believed?
may we have believed?
may you have believed?
may they have believed? 	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 	V-ing form 	Perfect 	V-ing perfect 	
may I not believe?
may you not believe?
may he not believe?
may we not believe?
may you not believe?
may they not believe? 	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? 	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? 	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?