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