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