could card-index
Verbo regular: card-index - card-indexed- card-indexed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could card-index
you could card-index
he could card-index
we could card-index
you could card-index
they could card-index 	I could be card-indexing
you could be card-indexing
he could be card-indexing
we could be card-indexing
you could be card-indexing
they could be card-indexing	I could have card-indexed
you could have card-indexed
he could have card-indexed
we could have card-indexed
you could have card-indexed
they could have card-indexed	I could have been card-indexing
you could have been card-indexing
he could have been card-indexing
we could have been card-indexing
you could have been card-indexing
they could have been card-indexing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not card-index
you could not card-index
he could not card-index
we could not card-index
you could not card-index
they could not card-index 	I could not be card-indexing
you could not be card-indexing
he could not be card-indexing
we could not be card-indexing
you could not be card-indexing
they could not be card-indexing	I could not have card-indexed
you could not have card-indexed
he could not have card-indexed
we could not have card-indexed
you could not have card-indexed
they could not have card-indexed	I could not have been card-indexing
you could not have been card-indexing
he could not have been card-indexing
we could not have been card-indexing
you could not have been card-indexing
they could not have been card-indexing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I card-index?
could you card-index?
could he card-index?
could we card-index?
could you card-index?
could they card-index? 	could I be card-indexing?
could you be card-indexing?
could he be card-indexing?
could we be card-indexing?
could you be card-indexing?
could they be card-indexing? 	could I have card-indexed?
could you have card-indexed?
could he have card-indexed?
could we have card-indexed?
could you have card-indexed?
could they have card-indexed? 	could I have been card-indexing?
could you have been card-indexing?
could he have been card-indexing?
could we have been card-indexing?
could you have been card-indexing?
could they have been card-indexing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not card-index?
could you not card-index?
could he not card-index?
could we not card-index?
could you not card-index?
could they not card-index? 	could I not be card-indexing?
could you not be card-indexing?
could he not be card-indexing?
could we not be card-indexing?
could you not be card-indexing?
could they not be card-indexing? 	could I not have card-indexed?
could you not have card-indexed?
could he not have card-indexed?
could we not have card-indexed?
could you not have card-indexed?
could they not have card-indexed? 	could I not have been card-indexing?
could you not have been card-indexing?
could he not have been card-indexing?
could we not have been card-indexing?
could you not have been card-indexing?
could they not have been card-indexing?