I must shape you must shape she must shape we must shape you must shape they must shape
V-ing form
I must be shaping you must be shaping she must be shaping we must be shaping you must be shaping they must be shaping
Perfect
I must have shaped you must have shaped she 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 she 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 she 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 she 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 she 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 she 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 she shape? must we shape? must you shape? must they shape?
V-ing form
must I be shaping? must you be shaping? must she be shaping? must we be shaping? must you be shaping? must they be shaping?
Perfect
must I have shaped? must you have shaped? must she 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 she 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 she 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 she 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 she 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 she have been shaping? mustn't we have been shaping? mustn't you have been shaping? mustn't they have been shaping?