could canter
Regular verb: canter - cantered- cantered

Affirmation 	
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I could canter
you could canter
she could canter
we could canter
you could canter
they could canter 	I could be cantering
you could be cantering
she could be cantering
we could be cantering
you could be cantering
they could be cantering	I could have cantered
you could have cantered
she could have cantered
we could have cantered
you could have cantered
they could have cantered	I could have been cantering
you could have been cantering
she could have been cantering
we could have been cantering
you could have been cantering
they could have been cantering	

Negation 	
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I couldn't canter
you couldn't canter
she couldn't canter
we couldn't canter
you couldn't canter
they couldn't canter 	I couldn't be cantering
you couldn't be cantering
she couldn't be cantering
we couldn't be cantering
you couldn't be cantering
they couldn't be cantering	I couldn't have cantered
you couldn't have cantered
she couldn't have cantered
we couldn't have cantered
you couldn't have cantered
they couldn't have cantered	I couldn't have been cantering
you couldn't have been cantering
she couldn't have been cantering
we couldn't have been cantering
you couldn't have been cantering
they couldn't have been cantering	

Interrogative form 	
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could I canter?
could you canter?
could she canter?
could we canter?
could you canter?
could they canter? 	could I be cantering?
could you be cantering?
could she be cantering?
could we be cantering?
could you be cantering?
could they be cantering? 	could I have cantered?
could you have cantered?
could she have cantered?
could we have cantered?
could you have cantered?
could they have cantered? 	could I have been cantering?
could you have been cantering?
could she have been cantering?
could we have been cantering?
could you have been cantering?
could they have been cantering? 	

Interro-negative form 	
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couldn't I canter?
couldn't you canter?
couldn't she canter?
couldn't we canter?
couldn't you canter?
couldn't they canter? 	couldn't I be cantering?
couldn't you be cantering?
couldn't she be cantering?
couldn't we be cantering?
couldn't you be cantering?
couldn't they be cantering? 	couldn't I have cantered?
couldn't you have cantered?
couldn't she have cantered?
couldn't we have cantered?
couldn't you have cantered?
couldn't they have cantered? 	couldn't I have been cantering?
couldn't you have been cantering?
couldn't she have been cantering?
couldn't we have been cantering?
couldn't you have been cantering?
couldn't they have been cantering?