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