I must mystify you must mystify she must mystify we must mystify you must mystify they must mystify
Forme en V-ing
I must be mystifying you must be mystifying she must be mystifying we must be mystifying you must be mystifying they must be mystifying
Perfect
I must have mystified you must have mystified she must have mystified we must have mystified you must have mystified they must have mystified
Perfect en V-ing
I must have been mystifying you must have been mystifying she must have been mystifying we must have been mystifying you must have been mystifying they must have been mystifying
Négation
Forme simple
I mustn't mystify you mustn't mystify she mustn't mystify we mustn't mystify you mustn't mystify they mustn't mystify
Forme en V-ing
I mustn't be mystifying you mustn't be mystifying she mustn't be mystifying we mustn't be mystifying you mustn't be mystifying they mustn't be mystifying
Perfect
I mustn't have mystified you mustn't have mystified she mustn't have mystified we mustn't have mystified you mustn't have mystified they mustn't have mystified
Perfect en V-ing
I mustn't have been mystifying you mustn't have been mystifying she mustn't have been mystifying we mustn't have been mystifying you mustn't have been mystifying they mustn't have been mystifying
Forme interrogative
Forme simple
must I mystify? must you mystify? must she mystify? must we mystify? must you mystify? must they mystify?
Forme en V-ing
must I be mystifying? must you be mystifying? must she be mystifying? must we be mystifying? must you be mystifying? must they be mystifying?
Perfect
must I have mystified? must you have mystified? must she have mystified? must we have mystified? must you have mystified? must they have mystified?
Perfect en V-ing
must I have been mystifying? must you have been mystifying? must she have been mystifying? must we have been mystifying? must you have been mystifying? must they have been mystifying?
Forme interro-négative
Forme simple
mustn't I mystify? mustn't you mystify? mustn't she mystify? mustn't we mystify? mustn't you mystify? mustn't they mystify?
Forme en V-ing
mustn't I be mystifying? mustn't you be mystifying? mustn't she be mystifying? mustn't we be mystifying? mustn't you be mystifying? mustn't they be mystifying?
Perfect
mustn't I have mystified? mustn't you have mystified? mustn't she have mystified? mustn't we have mystified? mustn't you have mystified? mustn't they have mystified?
Perfect en V-ing
mustn't I have been mystifying? mustn't you have been mystifying? mustn't she have been mystifying? mustn't we have been mystifying? mustn't you have been mystifying? mustn't they have been mystifying?