can paper
Regular verb: paper - papered- papered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can paper
you can paper
she can paper
we can paper
you can paper
they can paper 	I can be papering
you can be papering
she can be papering
we can be papering
you can be papering
they can be papering	I can have papered
you can have papered
she can have papered
we can have papered
you can have papered
they can have papered	I can have been papering
you can have been papering
she can have been papering
we can have been papering
you can have been papering
they can have been papering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't paper
you can't paper
she can't paper
we can't paper
you can't paper
they can't paper 	I can't be papering
you can't be papering
she can't be papering
we can't be papering
you can't be papering
they can't be papering	I can't have papered
you can't have papered
she can't have papered
we can't have papered
you can't have papered
they can't have papered	I can't have been papering
you can't have been papering
she can't have been papering
we can't have been papering
you can't have been papering
they can't have been papering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I paper?
can you paper?
can she paper?
can we paper?
can you paper?
can they paper? 	can I be papering?
can you be papering?
can she be papering?
can we be papering?
can you be papering?
can they be papering? 	can I have papered?
can you have papered?
can she have papered?
can we have papered?
can you have papered?
can they have papered? 	can I have been papering?
can you have been papering?
can she have been papering?
can we have been papering?
can you have been papering?
can they have been papering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I paper?
can't you paper?
can't she paper?
can't we paper?
can't you paper?
can't they paper? 	can't I be papering?
can't you be papering?
can't she be papering?
can't we be papering?
can't you be papering?
can't they be papering? 	can't I have papered?
can't you have papered?
can't she have papered?
can't we have papered?
can't you have papered?
can't they have papered? 	can't I have been papering?
can't you have been papering?
can't she have been papering?
can't we have been papering?
can't you have been papering?
can't they have been papering?