may puff
Verbo regular: puff - puffed- puffed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I may puff
you may puff
he may puff
we may puff
you may puff
they may puff 	I may be puffing
you may be puffing
he may be puffing
we may be puffing
you may be puffing
they may be puffing	I may have puffed
you may have puffed
he may have puffed
we may have puffed
you may have puffed
they may have puffed	I may have been puffing
you may have been puffing
he may have been puffing
we may have been puffing
you may have been puffing
they may have been puffing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mayn't puff
you mayn't puff
he mayn't puff
we mayn't puff
you mayn't puff
they mayn't puff 	I mayn't be puffing
you mayn't be puffing
he mayn't be puffing
we mayn't be puffing
you mayn't be puffing
they mayn't be puffing	I mayn't have puffed
you mayn't have puffed
he mayn't have puffed
we mayn't have puffed
you mayn't have puffed
they mayn't have puffed	I mayn't have been puffing
you mayn't have been puffing
he mayn't have been puffing
we mayn't have been puffing
you mayn't have been puffing
they mayn't have been puffing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
may I puff?
may you puff?
may he puff?
may we puff?
may you puff?
may they puff? 	may I be puffing?
may you be puffing?
may he be puffing?
may we be puffing?
may you be puffing?
may they be puffing? 	may I have puffed?
may you have puffed?
may he have puffed?
may we have puffed?
may you have puffed?
may they have puffed? 	may I have been puffing?
may you have been puffing?
may he have been puffing?
may we have been puffing?
may you have been puffing?
may they have been puffing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mayn't I puff?
mayn't you puff?
mayn't he puff?
mayn't we puff?
mayn't you puff?
mayn't they puff? 	mayn't I be puffing?
mayn't you be puffing?
mayn't he be puffing?
mayn't we be puffing?
mayn't you be puffing?
mayn't they be puffing? 	mayn't I have puffed?
mayn't you have puffed?
mayn't he have puffed?
mayn't we have puffed?
mayn't you have puffed?
mayn't they have puffed? 	mayn't I have been puffing?
mayn't you have been puffing?
mayn't he have been puffing?
mayn't we have been puffing?
mayn't you have been puffing?
mayn't they have been puffing?