English verb conjugation
MAY PRESTAMP

Regular verb: prestamp - prestamped - prestamped

Affirmation

Simple form	V-ing form
I may prestamp you may prestamp he may prestamp we may prestamp you may prestamp they may prestamp	I may be prestamping you may be prestamping he may be prestamping we may be prestamping you may be prestamping they may be prestamping
Perfect	V-ing perfect
I may have prestamped you may have prestamped he may have prestamped we may have prestamped you may have prestamped they may have prestamped	I may have been prestamping you may have been prestamping he may have been prestamping we may have been prestamping you may have been prestamping they may have been prestamping

Negation

Simple form	V-ing form
I may not prestamp you may not prestamp he may not prestamp we may not prestamp you may not prestamp they may not prestamp	I may not be prestamping you may not be prestamping he may not be prestamping we may not be prestamping you may not be prestamping they may not be prestamping
Perfect	V-ing perfect
I may not have prestamped you may not have prestamped he may not have prestamped we may not have prestamped you may not have prestamped they may not have prestamped	I may not have been prestamping you may not have been prestamping he may not have been prestamping we may not have been prestamping you may not have been prestamping they may not have been prestamping

Interrogative form

Simple form	V-ing form
may I prestamp? may you prestamp? may he prestamp? may we prestamp? may you prestamp? may they prestamp?	may I be prestamping? may you be prestamping? may he be prestamping? may we be prestamping? may you be prestamping? may they be prestamping?
Perfect	V-ing perfect
may I have prestamped? may you have prestamped? may he have prestamped? may we have prestamped? may you have prestamped? may they have prestamped?	may I have been prestamping? may you have been prestamping? may he have been prestamping? may we have been prestamping? may you have been prestamping? may they have been prestamping?

Interro-negative form

Simple form	V-ing form
may I not prestamp? may you not prestamp? may he not prestamp? may we not prestamp? may you not prestamp? may they not prestamp?	may I not be prestamping? may you not be prestamping? may he not be prestamping? may we not be prestamping? may you not be prestamping? may they not be prestamping?
Perfect	V-ing perfect
may I not have prestamped? may you not have prestamped? may he not have prestamped? may we not have prestamped? may you not have prestamped? may they not have prestamped?	may I not have been prestamping? may you not have been prestamping? may he not have been prestamping? may we not have been prestamping? may you not have been prestamping? may they not have been prestamping?