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