could cramp
Regular verb: cramp - cramped- cramped

Affirmation 	
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I could cramp
you could cramp
he could cramp
we could cramp
you could cramp
they could cramp 	I could be cramping
you could be cramping
he could be cramping
we could be cramping
you could be cramping
they could be cramping	I could have cramped
you could have cramped
he could have cramped
we could have cramped
you could have cramped
they could have cramped	I could have been cramping
you could have been cramping
he could have been cramping
we could have been cramping
you could have been cramping
they could have been cramping	

Negation 	
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I couldn't cramp
you couldn't cramp
he couldn't cramp
we couldn't cramp
you couldn't cramp
they couldn't cramp 	I couldn't be cramping
you couldn't be cramping
he couldn't be cramping
we couldn't be cramping
you couldn't be cramping
they couldn't be cramping	I couldn't have cramped
you couldn't have cramped
he couldn't have cramped
we couldn't have cramped
you couldn't have cramped
they couldn't have cramped	I couldn't have been cramping
you couldn't have been cramping
he couldn't have been cramping
we couldn't have been cramping
you couldn't have been cramping
they couldn't have been cramping	

Interrogative form 	
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could I cramp?
could you cramp?
could he cramp?
could we cramp?
could you cramp?
could they cramp? 	could I be cramping?
could you be cramping?
could he be cramping?
could we be cramping?
could you be cramping?
could they be cramping? 	could I have cramped?
could you have cramped?
could he have cramped?
could we have cramped?
could you have cramped?
could they have cramped? 	could I have been cramping?
could you have been cramping?
could he have been cramping?
could we have been cramping?
could you have been cramping?
could they have been cramping? 	

Interro-negative form 	
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couldn't I cramp?
couldn't you cramp?
couldn't he cramp?
couldn't we cramp?
couldn't you cramp?
couldn't they cramp? 	couldn't I be cramping?
couldn't you be cramping?
couldn't he be cramping?
couldn't we be cramping?
couldn't you be cramping?
couldn't they be cramping? 	couldn't I have cramped?
couldn't you have cramped?
couldn't he have cramped?
couldn't we have cramped?
couldn't you have cramped?
couldn't they have cramped? 	couldn't I have been cramping?
couldn't you have been cramping?
couldn't he have been cramping?
couldn't we have been cramping?
couldn't you have been cramping?
couldn't they have been cramping?