I must subcategorize you must subcategorize he must subcategorize we must subcategorize you must subcategorize they must subcategorize
V-ing form
I must be subcategorizing you must be subcategorizing he must be subcategorizing we must be subcategorizing you must be subcategorizing they must be subcategorizing
Perfect
I must have subcategorized you must have subcategorized he 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 he must have been subcategorizing we must have been subcategorizing you must have been subcategorizing they must have been subcategorizing
Negation
Simple form
I mustn't subcategorize you mustn't subcategorize he mustn't subcategorize we mustn't subcategorize you mustn't subcategorize they mustn't subcategorize
V-ing form
I mustn't be subcategorizing you mustn't be subcategorizing he mustn't be subcategorizing we mustn't be subcategorizing you mustn't be subcategorizing they mustn't be subcategorizing
Perfect
I mustn't have subcategorized you mustn't have subcategorized he mustn't have subcategorized we mustn't have subcategorized you mustn't have subcategorized they mustn't have subcategorized
V-ing perfect
I mustn't have been subcategorizing you mustn't have been subcategorizing he mustn't have been subcategorizing we mustn't have been subcategorizing you mustn't have been subcategorizing they mustn't have been subcategorizing
Interrogative form
Simple form
must I subcategorize? must you subcategorize? must he subcategorize? must we subcategorize? must you subcategorize? must they subcategorize?
V-ing form
must I be subcategorizing? must you be subcategorizing? must he be subcategorizing? must we be subcategorizing? must you be subcategorizing? must they be subcategorizing?
Perfect
must I have subcategorized? must you have subcategorized? must he 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 he have been subcategorizing? must we have been subcategorizing? must you have been subcategorizing? must they have been subcategorizing?
Interro-negative form
Simple form
mustn't I subcategorize? mustn't you subcategorize? mustn't he subcategorize? mustn't we subcategorize? mustn't you subcategorize? mustn't they subcategorize?
V-ing form
mustn't I be subcategorizing? mustn't you be subcategorizing? mustn't he be subcategorizing? mustn't we be subcategorizing? mustn't you be subcategorizing? mustn't they be subcategorizing?
Perfect
mustn't I have subcategorized? mustn't you have subcategorized? mustn't he have subcategorized? mustn't we have subcategorized? mustn't you have subcategorized? mustn't they have subcategorized?
V-ing perfect
mustn't I have been subcategorizing? mustn't you have been subcategorizing? mustn't he have been subcategorizing? mustn't we have been subcategorizing? mustn't you have been subcategorizing? mustn't they have been subcategorizing?