could card-index
Regular verb: card-index - card-indexed- card-indexed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't card-index
you couldn't card-index
he couldn't card-index
we couldn't card-index
you couldn't card-index
they couldn't card-index 	I couldn't be card-indexing
you couldn't be card-indexing
he couldn't be card-indexing
we couldn't be card-indexing
you couldn't be card-indexing
they couldn't be card-indexing	I couldn't have card-indexed
you couldn't have card-indexed
he couldn't have card-indexed
we couldn't have card-indexed
you couldn't have card-indexed
they couldn't have card-indexed	I couldn't have been card-indexing
you couldn't have been card-indexing
he couldn't have been card-indexing
we couldn't have been card-indexing
you couldn't have been card-indexing
they couldn't have been card-indexing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I card-index?
couldn't you card-index?
couldn't he card-index?
couldn't we card-index?
couldn't you card-index?
couldn't they card-index? 	couldn't I be card-indexing?
couldn't you be card-indexing?
couldn't he be card-indexing?
couldn't we be card-indexing?
couldn't you be card-indexing?
couldn't they be card-indexing? 	couldn't I have card-indexed?
couldn't you have card-indexed?
couldn't he have card-indexed?
couldn't we have card-indexed?
couldn't you have card-indexed?
couldn't they have card-indexed? 	couldn't I have been card-indexing?
couldn't you have been card-indexing?
couldn't he have been card-indexing?
couldn't we have been card-indexing?
couldn't you have been card-indexing?
couldn't they have been card-indexing?