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