I must try you must try he must try we must try you must try they must try
Forme en V-ing
I must be trying you must be trying he must be trying we must be trying you must be trying they must be trying
Perfect
I must have tried you must have tried he must have tried we must have tried you must have tried they must have tried
Perfect en V-ing
I must have been trying you must have been trying he must have been trying we must have been trying you must have been trying they must have been trying
Négation
Forme simple
I mustn't try you mustn't try he mustn't try we mustn't try you mustn't try they mustn't try
Forme en V-ing
I mustn't be trying you mustn't be trying he mustn't be trying we mustn't be trying you mustn't be trying they mustn't be trying
Perfect
I mustn't have tried you mustn't have tried he mustn't have tried we mustn't have tried you mustn't have tried they mustn't have tried
Perfect en V-ing
I mustn't have been trying you mustn't have been trying he mustn't have been trying we mustn't have been trying you mustn't have been trying they mustn't have been trying
Forme interrogative
Forme simple
must I try? must you try? must he try? must we try? must you try? must they try?
Forme en V-ing
must I be trying? must you be trying? must he be trying? must we be trying? must you be trying? must they be trying?
Perfect
must I have tried? must you have tried? must he have tried? must we have tried? must you have tried? must they have tried?
Perfect en V-ing
must I have been trying? must you have been trying? must he have been trying? must we have been trying? must you have been trying? must they have been trying?
Forme interro-négative
Forme simple
mustn't I try? mustn't you try? mustn't he try? mustn't we try? mustn't you try? mustn't they try?
Forme en V-ing
mustn't I be trying? mustn't you be trying? mustn't he be trying? mustn't we be trying? mustn't you be trying? mustn't they be trying?
Perfect
mustn't I have tried? mustn't you have tried? mustn't he have tried? mustn't we have tried? mustn't you have tried? mustn't they have tried?
Perfect en V-ing
mustn't I have been trying? mustn't you have been trying? mustn't he have been trying? mustn't we have been trying? mustn't you have been trying? mustn't they have been trying?