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