could bs
Verbo regular: bs - bsed- bsed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could bs
you could bs
he could bs
we could bs
you could bs
they could bs 	I could be bsing
you could be bsing
he could be bsing
we could be bsing
you could be bsing
they could be bsing	I could have bsed
you could have bsed
he could have bsed
we could have bsed
you could have bsed
they could have bsed	I could have been bsing
you could have been bsing
he could have been bsing
we could have been bsing
you could have been bsing
they could have been bsing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't bs
you couldn't bs
he couldn't bs
we couldn't bs
you couldn't bs
they couldn't bs 	I couldn't be bsing
you couldn't be bsing
he couldn't be bsing
we couldn't be bsing
you couldn't be bsing
they couldn't be bsing	I couldn't have bsed
you couldn't have bsed
he couldn't have bsed
we couldn't have bsed
you couldn't have bsed
they couldn't have bsed	I couldn't have been bsing
you couldn't have been bsing
he couldn't have been bsing
we couldn't have been bsing
you couldn't have been bsing
they couldn't have been bsing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I bs?
could you bs?
could he bs?
could we bs?
could you bs?
could they bs? 	could I be bsing?
could you be bsing?
could he be bsing?
could we be bsing?
could you be bsing?
could they be bsing? 	could I have bsed?
could you have bsed?
could he have bsed?
could we have bsed?
could you have bsed?
could they have bsed? 	could I have been bsing?
could you have been bsing?
could he have been bsing?
could we have been bsing?
could you have been bsing?
could they have been bsing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I bs?
couldn't you bs?
couldn't he bs?
couldn't we bs?
couldn't you bs?
couldn't they bs? 	couldn't I be bsing?
couldn't you be bsing?
couldn't he be bsing?
couldn't we be bsing?
couldn't you be bsing?
couldn't they be bsing? 	couldn't I have bsed?
couldn't you have bsed?
couldn't he have bsed?
couldn't we have bsed?
couldn't you have bsed?
couldn't they have bsed? 	couldn't I have been bsing?
couldn't you have been bsing?
couldn't he have been bsing?
couldn't we have been bsing?
couldn't you have been bsing?
couldn't they have been bsing?