may perform
Regular verb: perform - performed- performed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may perform
you may perform
she may perform
we may perform
you may perform
they may perform 	I may be performing
you may be performing
she may be performing
we may be performing
you may be performing
they may be performing	I may have performed
you may have performed
she may have performed
we may have performed
you may have performed
they may have performed	I may have been performing
you may have been performing
she may have been performing
we may have been performing
you may have been performing
they may have been performing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't perform
you mayn't perform
she mayn't perform
we mayn't perform
you mayn't perform
they mayn't perform 	I mayn't be performing
you mayn't be performing
she mayn't be performing
we mayn't be performing
you mayn't be performing
they mayn't be performing	I mayn't have performed
you mayn't have performed
she mayn't have performed
we mayn't have performed
you mayn't have performed
they mayn't have performed	I mayn't have been performing
you mayn't have been performing
she mayn't have been performing
we mayn't have been performing
you mayn't have been performing
they mayn't have been performing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I perform?
may you perform?
may she perform?
may we perform?
may you perform?
may they perform? 	may I be performing?
may you be performing?
may she be performing?
may we be performing?
may you be performing?
may they be performing? 	may I have performed?
may you have performed?
may she have performed?
may we have performed?
may you have performed?
may they have performed? 	may I have been performing?
may you have been performing?
may she have been performing?
may we have been performing?
may you have been performing?
may they have been performing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I perform?
mayn't you perform?
mayn't she perform?
mayn't we perform?
mayn't you perform?
mayn't they perform? 	mayn't I be performing?
mayn't you be performing?
mayn't she be performing?
mayn't we be performing?
mayn't you be performing?
mayn't they be performing? 	mayn't I have performed?
mayn't you have performed?
mayn't she have performed?
mayn't we have performed?
mayn't you have performed?
mayn't they have performed? 	mayn't I have been performing?
mayn't you have been performing?
mayn't she have been performing?
mayn't we have been performing?
mayn't you have been performing?
mayn't they have been performing?