I must scrape you must scrape he must scrape we must scrape you must scrape they must scrape
V-ing form
I must be scraping you must be scraping he must be scraping we must be scraping you must be scraping they must be scraping
Perfect
I must have scraped you must have scraped he must have scraped we must have scraped you must have scraped they must have scraped
V-ing perfect
I must have been scraping you must have been scraping he must have been scraping we must have been scraping you must have been scraping they must have been scraping
Negation
Simple form
I must not scrape you must not scrape he must not scrape we must not scrape you must not scrape they must not scrape
V-ing form
I must not be scraping you must not be scraping he must not be scraping we must not be scraping you must not be scraping they must not be scraping
Perfect
I must not have scraped you must not have scraped he must not have scraped we must not have scraped you must not have scraped they must not have scraped
V-ing perfect
I must not have been scraping you must not have been scraping he must not have been scraping we must not have been scraping you must not have been scraping they must not have been scraping
Interrogative form
Simple form
must I scrape? must you scrape? must he scrape? must we scrape? must you scrape? must they scrape?
V-ing form
must I be scraping? must you be scraping? must he be scraping? must we be scraping? must you be scraping? must they be scraping?
Perfect
must I have scraped? must you have scraped? must he have scraped? must we have scraped? must you have scraped? must they have scraped?
V-ing perfect
must I have been scraping? must you have been scraping? must he have been scraping? must we have been scraping? must you have been scraping? must they have been scraping?
Interro-negative form
Simple form
must I not scrape? must you not scrape? must he not scrape? must we not scrape? must you not scrape? must they not scrape?
V-ing form
must I not be scraping? must you not be scraping? must he not be scraping? must we not be scraping? must you not be scraping? must they not be scraping?
Perfect
must I not have scraped? must you not have scraped? must he not have scraped? must we not have scraped? must you not have scraped? must they not have scraped?
V-ing perfect
must I not have been scraping? must you not have been scraping? must he not have been scraping? must we not have been scraping? must you not have been scraping? must they not have been scraping?