may attend
Verbo regular: attend - attended- attended

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I may attend
you may attend
he may attend
we may attend
you may attend
they may attend 	I may be attending
you may be attending
he may be attending
we may be attending
you may be attending
they may be attending	I may have attended
you may have attended
he 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
he may have been attending
we may have been attending
you may have been attending
they may have been attending	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mayn't attend
you mayn't attend
he 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
he 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
he 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
he mayn't have been attending
we mayn't have been attending
you mayn't have been attending
they mayn't have been attending	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
may I attend?
may you attend?
may he attend?
may we attend?
may you attend?
may they attend? 	may I be attending?
may you be attending?
may he be attending?
may we be attending?
may you be attending?
may they be attending? 	may I have attended?
may you have attended?
may he 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 he have been attending?
may we have been attending?
may you have been attending?
may they have been attending? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mayn't I attend?
mayn't you attend?
mayn't he 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 he 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 he 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 he have been attending?
mayn't we have been attending?
mayn't you have been attending?
mayn't they have been attending?