could scrape
Regular verb: scrape - scraped- scraped

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not scrape
you could not scrape
he could not scrape
we could not scrape
you could not scrape
they could not scrape 	I could not be scraping
you could not be scraping
he could not be scraping
we could not be scraping
you could not be scraping
they could not be scraping	I could not have scraped
you could not have scraped
he could not have scraped
we could not have scraped
you could not have scraped
they could not have scraped	I could not have been scraping
you could not have been scraping
he could not have been scraping
we could not have been scraping
you could not have been scraping
they could not 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 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not scrape?
could you not scrape?
could he not scrape?
could we not scrape?
could you not scrape?
could they not scrape? 	could I not be scraping?
could you not be scraping?
could he not be scraping?
could we not be scraping?
could you not be scraping?
could they not be scraping? 	could I not have scraped?
could you not have scraped?
could he not have scraped?
could we not have scraped?
could you not have scraped?
could they not have scraped? 	could I not have been scraping?
could you not have been scraping?
could he not have been scraping?
could we not have been scraping?
could you not have been scraping?
could they not have been scraping?