could id
Regular verb: id - ided- ided

Affirmation 	
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I could id
you could id
he could id
we could id
you could id
they could id 	I could be iding
you could be iding
he could be iding
we could be iding
you could be iding
they could be iding	I could have ided
you could have ided
he could have ided
we could have ided
you could have ided
they could have ided	I could have been iding
you could have been iding
he could have been iding
we could have been iding
you could have been iding
they could have been iding	

Negation 	
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I couldn't id
you couldn't id
he couldn't id
we couldn't id
you couldn't id
they couldn't id 	I couldn't be iding
you couldn't be iding
he couldn't be iding
we couldn't be iding
you couldn't be iding
they couldn't be iding	I couldn't have ided
you couldn't have ided
he couldn't have ided
we couldn't have ided
you couldn't have ided
they couldn't have ided	I couldn't have been iding
you couldn't have been iding
he couldn't have been iding
we couldn't have been iding
you couldn't have been iding
they couldn't have been iding	

Interrogative form 	
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could I id?
could you id?
could he id?
could we id?
could you id?
could they id? 	could I be iding?
could you be iding?
could he be iding?
could we be iding?
could you be iding?
could they be iding? 	could I have ided?
could you have ided?
could he have ided?
could we have ided?
could you have ided?
could they have ided? 	could I have been iding?
could you have been iding?
could he have been iding?
could we have been iding?
could you have been iding?
could they have been iding? 	

Interro-negative form 	
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couldn't I id?
couldn't you id?
couldn't he id?
couldn't we id?
couldn't you id?
couldn't they id? 	couldn't I be iding?
couldn't you be iding?
couldn't he be iding?
couldn't we be iding?
couldn't you be iding?
couldn't they be iding? 	couldn't I have ided?
couldn't you have ided?
couldn't he have ided?
couldn't we have ided?
couldn't you have ided?
couldn't they have ided? 	couldn't I have been iding?
couldn't you have been iding?
couldn't he have been iding?
couldn't we have been iding?
couldn't you have been iding?
couldn't they have been iding?