can pair
Regular verb: pair - paired- paired

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can pair
you can pair
he can pair
we can pair
you can pair
they can pair 	I can be pairing
you can be pairing
he can be pairing
we can be pairing
you can be pairing
they can be pairing	I can have paired
you can have paired
he can have paired
we can have paired
you can have paired
they can have paired	I can have been pairing
you can have been pairing
he can have been pairing
we can have been pairing
you can have been pairing
they can have been pairing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't pair
you can't pair
he can't pair
we can't pair
you can't pair
they can't pair 	I can't be pairing
you can't be pairing
he can't be pairing
we can't be pairing
you can't be pairing
they can't be pairing	I can't have paired
you can't have paired
he can't have paired
we can't have paired
you can't have paired
they can't have paired	I can't have been pairing
you can't have been pairing
he can't have been pairing
we can't have been pairing
you can't have been pairing
they can't have been pairing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I pair?
can you pair?
can he pair?
can we pair?
can you pair?
can they pair? 	can I be pairing?
can you be pairing?
can he be pairing?
can we be pairing?
can you be pairing?
can they be pairing? 	can I have paired?
can you have paired?
can he have paired?
can we have paired?
can you have paired?
can they have paired? 	can I have been pairing?
can you have been pairing?
can he have been pairing?
can we have been pairing?
can you have been pairing?
can they have been pairing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I pair?
can't you pair?
can't he pair?
can't we pair?
can't you pair?
can't they pair? 	can't I be pairing?
can't you be pairing?
can't he be pairing?
can't we be pairing?
can't you be pairing?
can't they be pairing? 	can't I have paired?
can't you have paired?
can't he have paired?
can't we have paired?
can't you have paired?
can't they have paired? 	can't I have been pairing?
can't you have been pairing?
can't he have been pairing?
can't we have been pairing?
can't you have been pairing?
can't they have been pairing?