could scrape
Regular verb: scrape - scraped- scraped

Affirmation 	
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I could scrape
you could scrape
he could scrape
we could scrape
you could scrape
they could scrape 	I could be scraping
you could be scraping
he could be scraping
we could be scraping
you could be scraping
they could be scraping	I could have scraped
you could have scraped
he could have scraped
we could have scraped
you could have scraped
they could have scraped	I could have been scraping
you could have been scraping
he could have been scraping
we could have been scraping
you could have been scraping
they could have been scraping	

Negation 	
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I couldn't scrape
you couldn't scrape
he couldn't scrape
we couldn't scrape
you couldn't scrape
they couldn't scrape 	I couldn't be scraping
you couldn't be scraping
he couldn't be scraping
we couldn't be scraping
you couldn't be scraping
they couldn't be scraping	I couldn't have scraped
you couldn't have scraped
he couldn't have scraped
we couldn't have scraped
you couldn't have scraped
they couldn't have scraped	I couldn't have been scraping
you couldn't have been scraping
he couldn't have been scraping
we couldn't have been scraping
you couldn't have been scraping
they couldn't have been scraping	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I scrape?
could you scrape?
could he scrape?
could we scrape?
could you scrape?
could they scrape? 	could I be scraping?
could you be scraping?
could he be scraping?
could we be scraping?
could you be scraping?
could they be scraping? 	could I have scraped?
could you have scraped?
could he have scraped?
could we have scraped?
could you have scraped?
could they have scraped? 	could I have been scraping?
could you have been scraping?
could he have been scraping?
could we have been scraping?
could you have been scraping?
could they have been scraping? 	

Interro-negative form 	
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couldn't I scrape?
couldn't you scrape?
couldn't he scrape?
couldn't we scrape?
couldn't you scrape?
couldn't they scrape? 	couldn't I be scraping?
couldn't you be scraping?
couldn't he be scraping?
couldn't we be scraping?
couldn't you be scraping?
couldn't they be scraping? 	couldn't I have scraped?
couldn't you have scraped?
couldn't he have scraped?
couldn't we have scraped?
couldn't you have scraped?
couldn't they have scraped? 	couldn't I have been scraping?
couldn't you have been scraping?
couldn't he have been scraping?
couldn't we have been scraping?
couldn't you have been scraping?
couldn't they have been scraping?