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