can prestamp
Regular verb: prestamp - prestamped- prestamped

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

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't prestamp
you can't prestamp
he can't prestamp
we can't prestamp
you can't prestamp
they can't prestamp 	I can't be prestamping
you can't be prestamping
he can't be prestamping
we can't be prestamping
you can't be prestamping
they can't be prestamping	I can't have prestamped
you can't have prestamped
he can't have prestamped
we can't have prestamped
you can't have prestamped
they can't have prestamped	I can't have been prestamping
you can't have been prestamping
he can't have been prestamping
we can't have been prestamping
you can't have been prestamping
they can't have been prestamping	

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

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I prestamp?
can't you prestamp?
can't he prestamp?
can't we prestamp?
can't you prestamp?
can't they prestamp? 	can't I be prestamping?
can't you be prestamping?
can't he be prestamping?
can't we be prestamping?
can't you be prestamping?
can't they be prestamping? 	can't I have prestamped?
can't you have prestamped?
can't he have prestamped?
can't we have prestamped?
can't you have prestamped?
can't they have prestamped? 	can't I have been prestamping?
can't you have been prestamping?
can't he have been prestamping?
can't we have been prestamping?
can't you have been prestamping?
can't they have been prestamping?