must waggle
Regular verb: waggle - waggled- waggled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must waggle
you must waggle
she must waggle
we must waggle
you must waggle
they must waggle 	I must be waggling
you must be waggling
she must be waggling
we must be waggling
you must be waggling
they must be waggling	I must have waggled
you must have waggled
she must have waggled
we must have waggled
you must have waggled
they must have waggled	I must have been waggling
you must have been waggling
she must have been waggling
we must have been waggling
you must have been waggling
they must have been waggling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't waggle
you mustn't waggle
she mustn't waggle
we mustn't waggle
you mustn't waggle
they mustn't waggle 	I mustn't be waggling
you mustn't be waggling
she mustn't be waggling
we mustn't be waggling
you mustn't be waggling
they mustn't be waggling	I mustn't have waggled
you mustn't have waggled
she mustn't have waggled
we mustn't have waggled
you mustn't have waggled
they mustn't have waggled	I mustn't have been waggling
you mustn't have been waggling
she mustn't have been waggling
we mustn't have been waggling
you mustn't have been waggling
they mustn't have been waggling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I waggle?
must you waggle?
must she waggle?
must we waggle?
must you waggle?
must they waggle? 	must I be waggling?
must you be waggling?
must she be waggling?
must we be waggling?
must you be waggling?
must they be waggling? 	must I have waggled?
must you have waggled?
must she have waggled?
must we have waggled?
must you have waggled?
must they have waggled? 	must I have been waggling?
must you have been waggling?
must she have been waggling?
must we have been waggling?
must you have been waggling?
must they have been waggling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I waggle?
mustn't you waggle?
mustn't she waggle?
mustn't we waggle?
mustn't you waggle?
mustn't they waggle? 	mustn't I be waggling?
mustn't you be waggling?
mustn't she be waggling?
mustn't we be waggling?
mustn't you be waggling?
mustn't they be waggling? 	mustn't I have waggled?
mustn't you have waggled?
mustn't she have waggled?
mustn't we have waggled?
mustn't you have waggled?
mustn't they have waggled? 	mustn't I have been waggling?
mustn't you have been waggling?
mustn't she have been waggling?
mustn't we have been waggling?
mustn't you have been waggling?
mustn't they have been waggling?