may prestamp
Regular verb: prestamp - prestamped- prestamped

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