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