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 mustn't categorize you mustn't categorize he mustn't categorize we mustn't categorize you mustn't categorize they mustn't categorize
V-ing form
I mustn't be categorizing you mustn't be categorizing he mustn't be categorizing we mustn't be categorizing you mustn't be categorizing they mustn't be categorizing
Perfect
I mustn't have categorized you mustn't have categorized he mustn't have categorized we mustn't have categorized you mustn't have categorized they mustn't have categorized
V-ing perfect
I mustn't have been categorizing you mustn't have been categorizing he mustn't have been categorizing we mustn't have been categorizing you mustn't have been categorizing they mustn't 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
mustn't I categorize? mustn't you categorize? mustn't he categorize? mustn't we categorize? mustn't you categorize? mustn't they categorize?
V-ing form
mustn't I be categorizing? mustn't you be categorizing? mustn't he be categorizing? mustn't we be categorizing? mustn't you be categorizing? mustn't they be categorizing?
Perfect
mustn't I have categorized? mustn't you have categorized? mustn't he have categorized? mustn't we have categorized? mustn't you have categorized? mustn't they have categorized?
V-ing perfect
mustn't I have been categorizing? mustn't you have been categorizing? mustn't he have been categorizing? mustn't we have been categorizing? mustn't you have been categorizing? mustn't they have been categorizing?