may puff
Regular verb: puff - puffed- puffed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may puff
you may puff
she may puff
we may puff
you may puff
they may puff 	I may be puffing
you may be puffing
she may be puffing
we may be puffing
you may be puffing
they may be puffing	I may have puffed
you may have puffed
she 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
she may have been puffing
we may have been puffing
you may have been puffing
they may have been puffing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may not puff
you may not puff
she may not puff
we may not puff
you may not puff
they may not puff 	I may not be puffing
you may not be puffing
she may not be puffing
we may not be puffing
you may not be puffing
they may not be puffing	I may not have puffed
you may not have puffed
she may not have puffed
we may not have puffed
you may not have puffed
they may not have puffed	I may not have been puffing
you may not have been puffing
she may not have been puffing
we may not have been puffing
you may not have been puffing
they may not have been puffing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I puff?
may you puff?
may she puff?
may we puff?
may you puff?
may they puff? 	may I be puffing?
may you be puffing?
may she be puffing?
may we be puffing?
may you be puffing?
may they be puffing? 	may I have puffed?
may you have puffed?
may she 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 she have been puffing?
may we have been puffing?
may you have been puffing?
may they have been puffing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I not puff?
may you not puff?
may she not puff?
may we not puff?
may you not puff?
may they not puff? 	may I not be puffing?
may you not be puffing?
may she not be puffing?
may we not be puffing?
may you not be puffing?
may they not be puffing? 	may I not have puffed?
may you not have puffed?
may she not have puffed?
may we not have puffed?
may you not have puffed?
may they not have puffed? 	may I not have been puffing?
may you not have been puffing?
may she not have been puffing?
may we not have been puffing?
may you not have been puffing?
may they not have been puffing?