English verb conjugation
MAY PUFF

Regular verb: puff - puffed - puffed

Affirmation

Simple form	V-ing form
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
Perfect	V-ing perfect
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
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
Perfect	V-ing perfect
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
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?
Perfect	V-ing perfect
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
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?
Perfect	V-ing perfect
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?