could be
Verbo irregular: be - was/were- been

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could be
you could be
she could be
we could be
you could be
they could be 	I could be being
you could be being
she could be being
we could be being
you could be being
they could be being	I could have been
you could have been
she could have been
we could have been
you could have been
they could have been	I could have been being
you could have been being
she could have been being
we could have been being
you could have been being
they could have been being	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't be
you couldn't be
she couldn't be
we couldn't be
you couldn't be
they couldn't be 	I couldn't be being
you couldn't be being
she couldn't be being
we couldn't be being
you couldn't be being
they couldn't be being	I couldn't have been
you couldn't have been
she couldn't have been
we couldn't have been
you couldn't have been
they couldn't have been	I couldn't have been being
you couldn't have been being
she couldn't have been being
we couldn't have been being
you couldn't have been being
they couldn't have been being	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I be?
could you be?
could she be?
could we be?
could you be?
could they be? 	could I be being?
could you be being?
could she be being?
could we be being?
could you be being?
could they be being? 	could I have been?
could you have been?
could she have been?
could we have been?
could you have been?
could they have been? 	could I have been being?
could you have been being?
could she have been being?
could we have been being?
could you have been being?
could they have been being? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I be?
couldn't you be?
couldn't she be?
couldn't we be?
couldn't you be?
couldn't they be? 	couldn't I be being?
couldn't you be being?
couldn't she be being?
couldn't we be being?
couldn't you be being?
couldn't they be being? 	couldn't I have been?
couldn't you have been?
couldn't she have been?
couldn't we have been?
couldn't you have been?
couldn't they have been? 	couldn't I have been being?
couldn't you have been being?
couldn't she have been being?
couldn't we have been being?
couldn't you have been being?
couldn't they have been being?