I must subcategorize you must subcategorize she must subcategorize we must subcategorize you must subcategorize they must subcategorize
V-ing form
I must be subcategorizing you must be subcategorizing she must be subcategorizing we must be subcategorizing you must be subcategorizing they must be subcategorizing
Perfect
I must have subcategorized you must have subcategorized she must have subcategorized we must have subcategorized you must have subcategorized they must have subcategorized
V-ing perfect
I must have been subcategorizing you must have been subcategorizing she must have been subcategorizing we must have been subcategorizing you must have been subcategorizing they must have been subcategorizing
Negation
Simple form
I must not subcategorize you must not subcategorize she must not subcategorize we must not subcategorize you must not subcategorize they must not subcategorize
V-ing form
I must not be subcategorizing you must not be subcategorizing she must not be subcategorizing we must not be subcategorizing you must not be subcategorizing they must not be subcategorizing
Perfect
I must not have subcategorized you must not have subcategorized she must not have subcategorized we must not have subcategorized you must not have subcategorized they must not have subcategorized
V-ing perfect
I must not have been subcategorizing you must not have been subcategorizing she must not have been subcategorizing we must not have been subcategorizing you must not have been subcategorizing they must not have been subcategorizing
Interrogative form
Simple form
must I subcategorize? must you subcategorize? must she subcategorize? must we subcategorize? must you subcategorize? must they subcategorize?
V-ing form
must I be subcategorizing? must you be subcategorizing? must she be subcategorizing? must we be subcategorizing? must you be subcategorizing? must they be subcategorizing?
Perfect
must I have subcategorized? must you have subcategorized? must she have subcategorized? must we have subcategorized? must you have subcategorized? must they have subcategorized?
V-ing perfect
must I have been subcategorizing? must you have been subcategorizing? must she have been subcategorizing? must we have been subcategorizing? must you have been subcategorizing? must they have been subcategorizing?
Interro-negative form
Simple form
must I not subcategorize? must you not subcategorize? must she not subcategorize? must we not subcategorize? must you not subcategorize? must they not subcategorize?
V-ing form
must I not be subcategorizing? must you not be subcategorizing? must she not be subcategorizing? must we not be subcategorizing? must you not be subcategorizing? must they not be subcategorizing?
Perfect
must I not have subcategorized? must you not have subcategorized? must she not have subcategorized? must we not have subcategorized? must you not have subcategorized? must they not have subcategorized?
V-ing perfect
must I not have been subcategorizing? must you not have been subcategorizing? must she not have been subcategorizing? must we not have been subcategorizing? must you not have been subcategorizing? must they not have been subcategorizing?