I must categorize you must categorize he must categorize we must categorize you must categorize they must categorize
V-ing form
I must be categorizing you must be categorizing he must be categorizing we must be categorizing you must be categorizing they must be categorizing
Perfect
I must have categorized you must have categorized he must have categorized we must have categorized you must have categorized they must have categorized
V-ing perfect
I must have been categorizing you must have been categorizing he must have been categorizing we must have been categorizing you must have been categorizing they must have been categorizing
Negation
Simple form
I must not categorize you must not categorize he must not categorize we must not categorize you must not categorize they must not categorize
V-ing form
I must not be categorizing you must not be categorizing he must not be categorizing we must not be categorizing you must not be categorizing they must not be categorizing
Perfect
I must not have categorized you must not have categorized he must not have categorized we must not have categorized you must not have categorized they must not have categorized
V-ing perfect
I must not have been categorizing you must not have been categorizing he must not have been categorizing we must not have been categorizing you must not have been categorizing they must not have been categorizing
Interrogative form
Simple form
must I categorize? must you categorize? must he categorize? must we categorize? must you categorize? must they categorize?
V-ing form
must I be categorizing? must you be categorizing? must he be categorizing? must we be categorizing? must you be categorizing? must they be categorizing?
Perfect
must I have categorized? must you have categorized? must he have categorized? must we have categorized? must you have categorized? must they have categorized?
V-ing perfect
must I have been categorizing? must you have been categorizing? must he have been categorizing? must we have been categorizing? must you have been categorizing? must they have been categorizing?
Interro-negative form
Simple form
must I not categorize? must you not categorize? must he not categorize? must we not categorize? must you not categorize? must they not categorize?
V-ing form
must I not be categorizing? must you not be categorizing? must he not be categorizing? must we not be categorizing? must you not be categorizing? must they not be categorizing?
Perfect
must I not have categorized? must you not have categorized? must he not have categorized? must we not have categorized? must you not have categorized? must they not have categorized?
V-ing perfect
must I not have been categorizing? must you not have been categorizing? must he not have been categorizing? must we not have been categorizing? must you not have been categorizing? must they not have been categorizing?