I must work you must work she must work we must work you must work they must work
Forme en V-ing
I must be working you must be working she must be working we must be working you must be working they must be working
Perfect
I must have worked you must have worked she must have worked we must have worked you must have worked they must have worked
Perfect en V-ing
I must have been working you must have been working she must have been working we must have been working you must have been working they must have been working
Négation
Forme simple
I must not work you must not work she must not work we must not work you must not work they must not work
Forme en V-ing
I must not be working you must not be working she must not be working we must not be working you must not be working they must not be working
Perfect
I must not have worked you must not have worked she must not have worked we must not have worked you must not have worked they must not have worked
Perfect en V-ing
I must not have been working you must not have been working she must not have been working we must not have been working you must not have been working they must not have been working
Forme interrogative
Forme simple
must I work? must you work? must she work? must we work? must you work? must they work?
Forme en V-ing
must I be working? must you be working? must she be working? must we be working? must you be working? must they be working?
Perfect
must I have worked? must you have worked? must she have worked? must we have worked? must you have worked? must they have worked?
Perfect en V-ing
must I have been working? must you have been working? must she have been working? must we have been working? must you have been working? must they have been working?
Forme interro-négative
Forme simple
must I not work? must you not work? must she not work? must we not work? must you not work? must they not work?
Forme en V-ing
must I not be working? must you not be working? must she not be working? must we not be working? must you not be working? must they not be working?
Perfect
must I not have worked? must you not have worked? must she not have worked? must we not have worked? must you not have worked? must they not have worked?
Perfect en V-ing
must I not have been working? must you not have been working? must she not have been working? must we not have been working? must you not have been working? must they not have been working?