I must applaud you must applaud she must applaud we must applaud you must applaud they must applaud
V-ing form
I must be applauding you must be applauding she must be applauding we must be applauding you must be applauding they must be applauding
Perfect
I must have applauded you must have applauded she must have applauded we must have applauded you must have applauded they must have applauded
V-ing perfect
I must have been applauding you must have been applauding she must have been applauding we must have been applauding you must have been applauding they must have been applauding
Negation
Simple form
I must not applaud you must not applaud she must not applaud we must not applaud you must not applaud they must not applaud
V-ing form
I must not be applauding you must not be applauding she must not be applauding we must not be applauding you must not be applauding they must not be applauding
Perfect
I must not have applauded you must not have applauded she must not have applauded we must not have applauded you must not have applauded they must not have applauded
V-ing perfect
I must not have been applauding you must not have been applauding she must not have been applauding we must not have been applauding you must not have been applauding they must not have been applauding
Interrogative form
Simple form
must I applaud? must you applaud? must she applaud? must we applaud? must you applaud? must they applaud?
V-ing form
must I be applauding? must you be applauding? must she be applauding? must we be applauding? must you be applauding? must they be applauding?
Perfect
must I have applauded? must you have applauded? must she have applauded? must we have applauded? must you have applauded? must they have applauded?
V-ing perfect
must I have been applauding? must you have been applauding? must she have been applauding? must we have been applauding? must you have been applauding? must they have been applauding?
Interro-negative form
Simple form
must I not applaud? must you not applaud? must she not applaud? must we not applaud? must you not applaud? must they not applaud?
V-ing form
must I not be applauding? must you not be applauding? must she not be applauding? must we not be applauding? must you not be applauding? must they not be applauding?
Perfect
must I not have applauded? must you not have applauded? must she not have applauded? must we not have applauded? must you not have applauded? must they not have applauded?
V-ing perfect
must I not have been applauding? must you not have been applauding? must she not have been applauding? must we not have been applauding? must you not have been applauding? must they not have been applauding?