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 must not shape you must not shape he must not shape we must not shape you must not shape they must not shape
V-ing form
I must not be shaping you must not be shaping he must not be shaping we must not be shaping you must not be shaping they must not be shaping
Perfect
I must not have shaped you must not have shaped he must not have shaped we must not have shaped you must not have shaped they must not have shaped
V-ing perfect
I must not have been shaping you must not have been shaping he must not have been shaping we must not have been shaping you must not have been shaping they must not 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
must I not shape? must you not shape? must he not shape? must we not shape? must you not shape? must they not shape?
V-ing form
must I not be shaping? must you not be shaping? must he not be shaping? must we not be shaping? must you not be shaping? must they not be shaping?
Perfect
must I not have shaped? must you not have shaped? must he not have shaped? must we not have shaped? must you not have shaped? must they not have shaped?
V-ing perfect
must I not have been shaping? must you not have been shaping? must he not have been shaping? must we not have been shaping? must you not have been shaping? must they not have been shaping?