could overheap
Regular verb: overheap - overheaped- overheaped

Affirmation 	
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I could overheap
you could overheap
he could overheap
we could overheap
you could overheap
they could overheap 	I could be overheaping
you could be overheaping
he could be overheaping
we could be overheaping
you could be overheaping
they could be overheaping	I could have overheaped
you could have overheaped
he could have overheaped
we could have overheaped
you could have overheaped
they could have overheaped	I could have been overheaping
you could have been overheaping
he could have been overheaping
we could have been overheaping
you could have been overheaping
they could have been overheaping	

Negation 	
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I couldn't overheap
you couldn't overheap
he couldn't overheap
we couldn't overheap
you couldn't overheap
they couldn't overheap 	I couldn't be overheaping
you couldn't be overheaping
he couldn't be overheaping
we couldn't be overheaping
you couldn't be overheaping
they couldn't be overheaping	I couldn't have overheaped
you couldn't have overheaped
he couldn't have overheaped
we couldn't have overheaped
you couldn't have overheaped
they couldn't have overheaped	I couldn't have been overheaping
you couldn't have been overheaping
he couldn't have been overheaping
we couldn't have been overheaping
you couldn't have been overheaping
they couldn't have been overheaping	

Interrogative form 	
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could I overheap?
could you overheap?
could he overheap?
could we overheap?
could you overheap?
could they overheap? 	could I be overheaping?
could you be overheaping?
could he be overheaping?
could we be overheaping?
could you be overheaping?
could they be overheaping? 	could I have overheaped?
could you have overheaped?
could he have overheaped?
could we have overheaped?
could you have overheaped?
could they have overheaped? 	could I have been overheaping?
could you have been overheaping?
could he have been overheaping?
could we have been overheaping?
could you have been overheaping?
could they have been overheaping? 	

Interro-negative form 	
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couldn't I overheap?
couldn't you overheap?
couldn't he overheap?
couldn't we overheap?
couldn't you overheap?
couldn't they overheap? 	couldn't I be overheaping?
couldn't you be overheaping?
couldn't he be overheaping?
couldn't we be overheaping?
couldn't you be overheaping?
couldn't they be overheaping? 	couldn't I have overheaped?
couldn't you have overheaped?
couldn't he have overheaped?
couldn't we have overheaped?
couldn't you have overheaped?
couldn't they have overheaped? 	couldn't I have been overheaping?
couldn't you have been overheaping?
couldn't he have been overheaping?
couldn't we have been overheaping?
couldn't you have been overheaping?
couldn't they have been overheaping?