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