I must premier you must premier he must premier we must premier you must premier they must premier
V-ing form
I must be premiering you must be premiering he must be premiering we must be premiering you must be premiering they must be premiering
Perfect
I must have premiered you must have premiered he must have premiered we must have premiered you must have premiered they must have premiered
V-ing perfect
I must have been premiering you must have been premiering he must have been premiering we must have been premiering you must have been premiering they must have been premiering
Negation
Simple form
I mustn't premier you mustn't premier he mustn't premier we mustn't premier you mustn't premier they mustn't premier
V-ing form
I mustn't be premiering you mustn't be premiering he mustn't be premiering we mustn't be premiering you mustn't be premiering they mustn't be premiering
Perfect
I mustn't have premiered you mustn't have premiered he mustn't have premiered we mustn't have premiered you mustn't have premiered they mustn't have premiered
V-ing perfect
I mustn't have been premiering you mustn't have been premiering he mustn't have been premiering we mustn't have been premiering you mustn't have been premiering they mustn't have been premiering
Interrogative form
Simple form
must I premier? must you premier? must he premier? must we premier? must you premier? must they premier?
V-ing form
must I be premiering? must you be premiering? must he be premiering? must we be premiering? must you be premiering? must they be premiering?
Perfect
must I have premiered? must you have premiered? must he have premiered? must we have premiered? must you have premiered? must they have premiered?
V-ing perfect
must I have been premiering? must you have been premiering? must he have been premiering? must we have been premiering? must you have been premiering? must they have been premiering?
Interro-negative form
Simple form
mustn't I premier? mustn't you premier? mustn't he premier? mustn't we premier? mustn't you premier? mustn't they premier?
V-ing form
mustn't I be premiering? mustn't you be premiering? mustn't he be premiering? mustn't we be premiering? mustn't you be premiering? mustn't they be premiering?
Perfect
mustn't I have premiered? mustn't you have premiered? mustn't he have premiered? mustn't we have premiered? mustn't you have premiered? mustn't they have premiered?
V-ing perfect
mustn't I have been premiering? mustn't you have been premiering? mustn't he have been premiering? mustn't we have been premiering? mustn't you have been premiering? mustn't they have been premiering?