may book
Verbo regular: book - booked- booked

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I may book
you may book
he may book
we may book
you may book
they may book 	I may be booking
you may be booking
he may be booking
we may be booking
you may be booking
they may be booking	I may have booked
you may have booked
he may have booked
we may have booked
you may have booked
they may have booked	I may have been booking
you may have been booking
he may have been booking
we may have been booking
you may have been booking
they may have been booking	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mayn't book
you mayn't book
he mayn't book
we mayn't book
you mayn't book
they mayn't book 	I mayn't be booking
you mayn't be booking
he mayn't be booking
we mayn't be booking
you mayn't be booking
they mayn't be booking	I mayn't have booked
you mayn't have booked
he mayn't have booked
we mayn't have booked
you mayn't have booked
they mayn't have booked	I mayn't have been booking
you mayn't have been booking
he mayn't have been booking
we mayn't have been booking
you mayn't have been booking
they mayn't have been booking	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
may I book?
may you book?
may he book?
may we book?
may you book?
may they book? 	may I be booking?
may you be booking?
may he be booking?
may we be booking?
may you be booking?
may they be booking? 	may I have booked?
may you have booked?
may he have booked?
may we have booked?
may you have booked?
may they have booked? 	may I have been booking?
may you have been booking?
may he have been booking?
may we have been booking?
may you have been booking?
may they have been booking? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mayn't I book?
mayn't you book?
mayn't he book?
mayn't we book?
mayn't you book?
mayn't they book? 	mayn't I be booking?
mayn't you be booking?
mayn't he be booking?
mayn't we be booking?
mayn't you be booking?
mayn't they be booking? 	mayn't I have booked?
mayn't you have booked?
mayn't he have booked?
mayn't we have booked?
mayn't you have booked?
mayn't they have booked? 	mayn't I have been booking?
mayn't you have been booking?
mayn't he have been booking?
mayn't we have been booking?
mayn't you have been booking?
mayn't they have been booking?