could coextend
Verbo regular: coextend - coextended- coextended

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could coextend
you could coextend
he could coextend
we could coextend
you could coextend
they could coextend 	I could be coextending
you could be coextending
he could be coextending
we could be coextending
you could be coextending
they could be coextending	I could have coextended
you could have coextended
he could have coextended
we could have coextended
you could have coextended
they could have coextended	I could have been coextending
you could have been coextending
he could have been coextending
we could have been coextending
you could have been coextending
they could have been coextending	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't coextend
you couldn't coextend
he couldn't coextend
we couldn't coextend
you couldn't coextend
they couldn't coextend 	I couldn't be coextending
you couldn't be coextending
he couldn't be coextending
we couldn't be coextending
you couldn't be coextending
they couldn't be coextending	I couldn't have coextended
you couldn't have coextended
he couldn't have coextended
we couldn't have coextended
you couldn't have coextended
they couldn't have coextended	I couldn't have been coextending
you couldn't have been coextending
he couldn't have been coextending
we couldn't have been coextending
you couldn't have been coextending
they couldn't have been coextending	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I coextend?
could you coextend?
could he coextend?
could we coextend?
could you coextend?
could they coextend? 	could I be coextending?
could you be coextending?
could he be coextending?
could we be coextending?
could you be coextending?
could they be coextending? 	could I have coextended?
could you have coextended?
could he have coextended?
could we have coextended?
could you have coextended?
could they have coextended? 	could I have been coextending?
could you have been coextending?
could he have been coextending?
could we have been coextending?
could you have been coextending?
could they have been coextending? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I coextend?
couldn't you coextend?
couldn't he coextend?
couldn't we coextend?
couldn't you coextend?
couldn't they coextend? 	couldn't I be coextending?
couldn't you be coextending?
couldn't he be coextending?
couldn't we be coextending?
couldn't you be coextending?
couldn't they be coextending? 	couldn't I have coextended?
couldn't you have coextended?
couldn't he have coextended?
couldn't we have coextended?
couldn't you have coextended?
couldn't they have coextended? 	couldn't I have been coextending?
couldn't you have been coextending?
couldn't he have been coextending?
couldn't we have been coextending?
couldn't you have been coextending?
couldn't they have been coextending?