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