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