could scamper
Regular verb: scamper - scampered- scampered

Affirmation 	
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I could scamper
you could scamper
he could scamper
we could scamper
you could scamper
they could scamper 	I could be scampering
you could be scampering
he could be scampering
we could be scampering
you could be scampering
they could be scampering	I could have scampered
you could have scampered
he could have scampered
we could have scampered
you could have scampered
they could have scampered	I could have been scampering
you could have been scampering
he could have been scampering
we could have been scampering
you could have been scampering
they could have been scampering	

Negation 	
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I couldn't scamper
you couldn't scamper
he couldn't scamper
we couldn't scamper
you couldn't scamper
they couldn't scamper 	I couldn't be scampering
you couldn't be scampering
he couldn't be scampering
we couldn't be scampering
you couldn't be scampering
they couldn't be scampering	I couldn't have scampered
you couldn't have scampered
he couldn't have scampered
we couldn't have scampered
you couldn't have scampered
they couldn't have scampered	I couldn't have been scampering
you couldn't have been scampering
he couldn't have been scampering
we couldn't have been scampering
you couldn't have been scampering
they couldn't have been scampering	

Interrogative form 	
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could I scamper?
could you scamper?
could he scamper?
could we scamper?
could you scamper?
could they scamper? 	could I be scampering?
could you be scampering?
could he be scampering?
could we be scampering?
could you be scampering?
could they be scampering? 	could I have scampered?
could you have scampered?
could he have scampered?
could we have scampered?
could you have scampered?
could they have scampered? 	could I have been scampering?
could you have been scampering?
could he have been scampering?
could we have been scampering?
could you have been scampering?
could they have been scampering? 	

Interro-negative form 	
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couldn't I scamper?
couldn't you scamper?
couldn't he scamper?
couldn't we scamper?
couldn't you scamper?
couldn't they scamper? 	couldn't I be scampering?
couldn't you be scampering?
couldn't he be scampering?
couldn't we be scampering?
couldn't you be scampering?
couldn't they be scampering? 	couldn't I have scampered?
couldn't you have scampered?
couldn't he have scampered?
couldn't we have scampered?
couldn't you have scampered?
couldn't they have scampered? 	couldn't I have been scampering?
couldn't you have been scampering?
couldn't he have been scampering?
couldn't we have been scampering?
couldn't you have been scampering?
couldn't they have been scampering?