may buff
Regular verb: buff - buffed- buffed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may buff
you may buff
he may buff
we may buff
you may buff
they may buff 	I may be buffing
you may be buffing
he may be buffing
we may be buffing
you may be buffing
they may be buffing	I may have buffed
you may have buffed
he may have buffed
we may have buffed
you may have buffed
they may have buffed	I may have been buffing
you may have been buffing
he may have been buffing
we may have been buffing
you may have been buffing
they may have been buffing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't buff
you mayn't buff
he mayn't buff
we mayn't buff
you mayn't buff
they mayn't buff 	I mayn't be buffing
you mayn't be buffing
he mayn't be buffing
we mayn't be buffing
you mayn't be buffing
they mayn't be buffing	I mayn't have buffed
you mayn't have buffed
he mayn't have buffed
we mayn't have buffed
you mayn't have buffed
they mayn't have buffed	I mayn't have been buffing
you mayn't have been buffing
he mayn't have been buffing
we mayn't have been buffing
you mayn't have been buffing
they mayn't have been buffing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I buff?
may you buff?
may he buff?
may we buff?
may you buff?
may they buff? 	may I be buffing?
may you be buffing?
may he be buffing?
may we be buffing?
may you be buffing?
may they be buffing? 	may I have buffed?
may you have buffed?
may he have buffed?
may we have buffed?
may you have buffed?
may they have buffed? 	may I have been buffing?
may you have been buffing?
may he have been buffing?
may we have been buffing?
may you have been buffing?
may they have been buffing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I buff?
mayn't you buff?
mayn't he buff?
mayn't we buff?
mayn't you buff?
mayn't they buff? 	mayn't I be buffing?
mayn't you be buffing?
mayn't he be buffing?
mayn't we be buffing?
mayn't you be buffing?
mayn't they be buffing? 	mayn't I have buffed?
mayn't you have buffed?
mayn't he have buffed?
mayn't we have buffed?
mayn't you have buffed?
mayn't they have buffed? 	mayn't I have been buffing?
mayn't you have been buffing?
mayn't he have been buffing?
mayn't we have been buffing?
mayn't you have been buffing?
mayn't they have been buffing?