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