I must depolymerize you must depolymerize she must depolymerize we must depolymerize you must depolymerize they must depolymerize
V-ing form
I must be depolymerizing you must be depolymerizing she must be depolymerizing we must be depolymerizing you must be depolymerizing they must be depolymerizing
Perfect
I must have depolymerized you must have depolymerized she 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 she 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 she 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 she 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 she 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 she 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 she depolymerize? must we depolymerize? must you depolymerize? must they depolymerize?
V-ing form
must I be depolymerizing? must you be depolymerizing? must she be depolymerizing? must we be depolymerizing? must you be depolymerizing? must they be depolymerizing?
Perfect
must I have depolymerized? must you have depolymerized? must she 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 she 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 she 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 she 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 she 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 she have been depolymerizing? mustn't we have been depolymerizing? mustn't you have been depolymerizing? mustn't they have been depolymerizing?