could pair
Verbo regular: pair - paired- paired

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could pair
you could pair
he could pair
we could pair
you could pair
they could pair 	I could be pairing
you could be pairing
he could be pairing
we could be pairing
you could be pairing
they could be pairing	I could have paired
you could have paired
he could have paired
we could have paired
you could have paired
they could have paired	I could have been pairing
you could have been pairing
he could have been pairing
we could have been pairing
you could have been pairing
they could have been pairing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not pair
you could not pair
he could not pair
we could not pair
you could not pair
they could not pair 	I could not be pairing
you could not be pairing
he could not be pairing
we could not be pairing
you could not be pairing
they could not be pairing	I could not have paired
you could not have paired
he could not have paired
we could not have paired
you could not have paired
they could not have paired	I could not have been pairing
you could not have been pairing
he could not have been pairing
we could not have been pairing
you could not have been pairing
they could not have been pairing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I pair?
could you pair?
could he pair?
could we pair?
could you pair?
could they pair? 	could I be pairing?
could you be pairing?
could he be pairing?
could we be pairing?
could you be pairing?
could they be pairing? 	could I have paired?
could you have paired?
could he have paired?
could we have paired?
could you have paired?
could they have paired? 	could I have been pairing?
could you have been pairing?
could he have been pairing?
could we have been pairing?
could you have been pairing?
could they have been pairing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not pair?
could you not pair?
could he not pair?
could we not pair?
could you not pair?
could they not pair? 	could I not be pairing?
could you not be pairing?
could he not be pairing?
could we not be pairing?
could you not be pairing?
could they not be pairing? 	could I not have paired?
could you not have paired?
could he not have paired?
could we not have paired?
could you not have paired?
could they not have paired? 	could I not have been pairing?
could you not have been pairing?
could he not have been pairing?
could we not have been pairing?
could you not have been pairing?
could they not have been pairing?