I must detract you must detract she must detract we must detract you must detract they must detract
V-ing form
I must be detracting you must be detracting she must be detracting we must be detracting you must be detracting they must be detracting
Perfect
I must have detracted you must have detracted she must have detracted we must have detracted you must have detracted they must have detracted
V-ing perfect
I must have been detracting you must have been detracting she must have been detracting we must have been detracting you must have been detracting they must have been detracting
Negation
Simple form
I mustn't detract you mustn't detract she mustn't detract we mustn't detract you mustn't detract they mustn't detract
V-ing form
I mustn't be detracting you mustn't be detracting she mustn't be detracting we mustn't be detracting you mustn't be detracting they mustn't be detracting
Perfect
I mustn't have detracted you mustn't have detracted she mustn't have detracted we mustn't have detracted you mustn't have detracted they mustn't have detracted
V-ing perfect
I mustn't have been detracting you mustn't have been detracting she mustn't have been detracting we mustn't have been detracting you mustn't have been detracting they mustn't have been detracting
Interrogative form
Simple form
must I detract? must you detract? must she detract? must we detract? must you detract? must they detract?
V-ing form
must I be detracting? must you be detracting? must she be detracting? must we be detracting? must you be detracting? must they be detracting?
Perfect
must I have detracted? must you have detracted? must she have detracted? must we have detracted? must you have detracted? must they have detracted?
V-ing perfect
must I have been detracting? must you have been detracting? must she have been detracting? must we have been detracting? must you have been detracting? must they have been detracting?
Interro-negative form
Simple form
mustn't I detract? mustn't you detract? mustn't she detract? mustn't we detract? mustn't you detract? mustn't they detract?
V-ing form
mustn't I be detracting? mustn't you be detracting? mustn't she be detracting? mustn't we be detracting? mustn't you be detracting? mustn't they be detracting?
Perfect
mustn't I have detracted? mustn't you have detracted? mustn't she have detracted? mustn't we have detracted? mustn't you have detracted? mustn't they have detracted?
V-ing perfect
mustn't I have been detracting? mustn't you have been detracting? mustn't she have been detracting? mustn't we have been detracting? mustn't you have been detracting? mustn't they have been detracting?