may attend
Regular verb: attend - attended- attended

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may attend
you may attend
she may attend
we may attend
you may attend
they may attend 	I may be attending
you may be attending
she may be attending
we may be attending
you may be attending
they may be attending	I may have attended
you may have attended
she may have attended
we may have attended
you may have attended
they may have attended	I may have been attending
you may have been attending
she may have been attending
we may have been attending
you may have been attending
they may have been attending	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't attend
you mayn't attend
she mayn't attend
we mayn't attend
you mayn't attend
they mayn't attend 	I mayn't be attending
you mayn't be attending
she mayn't be attending
we mayn't be attending
you mayn't be attending
they mayn't be attending	I mayn't have attended
you mayn't have attended
she mayn't have attended
we mayn't have attended
you mayn't have attended
they mayn't have attended	I mayn't have been attending
you mayn't have been attending
she mayn't have been attending
we mayn't have been attending
you mayn't have been attending
they mayn't have been attending	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I attend?
may you attend?
may she attend?
may we attend?
may you attend?
may they attend? 	may I be attending?
may you be attending?
may she be attending?
may we be attending?
may you be attending?
may they be attending? 	may I have attended?
may you have attended?
may she have attended?
may we have attended?
may you have attended?
may they have attended? 	may I have been attending?
may you have been attending?
may she have been attending?
may we have been attending?
may you have been attending?
may they have been attending? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I attend?
mayn't you attend?
mayn't she attend?
mayn't we attend?
mayn't you attend?
mayn't they attend? 	mayn't I be attending?
mayn't you be attending?
mayn't she be attending?
mayn't we be attending?
mayn't you be attending?
mayn't they be attending? 	mayn't I have attended?
mayn't you have attended?
mayn't she have attended?
mayn't we have attended?
mayn't you have attended?
mayn't they have attended? 	mayn't I have been attending?
mayn't you have been attending?
mayn't she have been attending?
mayn't we have been attending?
mayn't you have been attending?
mayn't they have been attending?