I must create you must create she must create we must create you must create they must create
V-ing form
I must be creating you must be creating she must be creating we must be creating you must be creating they must be creating
Perfect
I must have created you must have created she must have created we must have created you must have created they must have created
V-ing perfect
I must have been creating you must have been creating she must have been creating we must have been creating you must have been creating they must have been creating
Negation
Simple form
I mustn't create you mustn't create she mustn't create we mustn't create you mustn't create they mustn't create
V-ing form
I mustn't be creating you mustn't be creating she mustn't be creating we mustn't be creating you mustn't be creating they mustn't be creating
Perfect
I mustn't have created you mustn't have created she mustn't have created we mustn't have created you mustn't have created they mustn't have created
V-ing perfect
I mustn't have been creating you mustn't have been creating she mustn't have been creating we mustn't have been creating you mustn't have been creating they mustn't have been creating
Interrogative form
Simple form
must I create? must you create? must she create? must we create? must you create? must they create?
V-ing form
must I be creating? must you be creating? must she be creating? must we be creating? must you be creating? must they be creating?
Perfect
must I have created? must you have created? must she have created? must we have created? must you have created? must they have created?
V-ing perfect
must I have been creating? must you have been creating? must she have been creating? must we have been creating? must you have been creating? must they have been creating?
Interro-negative form
Simple form
mustn't I create? mustn't you create? mustn't she create? mustn't we create? mustn't you create? mustn't they create?
V-ing form
mustn't I be creating? mustn't you be creating? mustn't she be creating? mustn't we be creating? mustn't you be creating? mustn't they be creating?
Perfect
mustn't I have created? mustn't you have created? mustn't she have created? mustn't we have created? mustn't you have created? mustn't they have created?
V-ing perfect
mustn't I have been creating? mustn't you have been creating? mustn't she have been creating? mustn't we have been creating? mustn't you have been creating? mustn't they have been creating?