must squiggle
Regular verb: squiggle - squiggled- squiggled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must squiggle
you must squiggle
she must squiggle
we must squiggle
you must squiggle
they must squiggle 	I must be squiggling
you must be squiggling
she must be squiggling
we must be squiggling
you must be squiggling
they must be squiggling	I must have squiggled
you must have squiggled
she must have squiggled
we must have squiggled
you must have squiggled
they must have squiggled	I must have been squiggling
you must have been squiggling
she must have been squiggling
we must have been squiggling
you must have been squiggling
they must have been squiggling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't squiggle
you mustn't squiggle
she mustn't squiggle
we mustn't squiggle
you mustn't squiggle
they mustn't squiggle 	I mustn't be squiggling
you mustn't be squiggling
she mustn't be squiggling
we mustn't be squiggling
you mustn't be squiggling
they mustn't be squiggling	I mustn't have squiggled
you mustn't have squiggled
she mustn't have squiggled
we mustn't have squiggled
you mustn't have squiggled
they mustn't have squiggled	I mustn't have been squiggling
you mustn't have been squiggling
she mustn't have been squiggling
we mustn't have been squiggling
you mustn't have been squiggling
they mustn't have been squiggling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I squiggle?
must you squiggle?
must she squiggle?
must we squiggle?
must you squiggle?
must they squiggle? 	must I be squiggling?
must you be squiggling?
must she be squiggling?
must we be squiggling?
must you be squiggling?
must they be squiggling? 	must I have squiggled?
must you have squiggled?
must she have squiggled?
must we have squiggled?
must you have squiggled?
must they have squiggled? 	must I have been squiggling?
must you have been squiggling?
must she have been squiggling?
must we have been squiggling?
must you have been squiggling?
must they have been squiggling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I squiggle?
mustn't you squiggle?
mustn't she squiggle?
mustn't we squiggle?
mustn't you squiggle?
mustn't they squiggle? 	mustn't I be squiggling?
mustn't you be squiggling?
mustn't she be squiggling?
mustn't we be squiggling?
mustn't you be squiggling?
mustn't they be squiggling? 	mustn't I have squiggled?
mustn't you have squiggled?
mustn't she have squiggled?
mustn't we have squiggled?
mustn't you have squiggled?
mustn't they have squiggled? 	mustn't I have been squiggling?
mustn't you have been squiggling?
mustn't she have been squiggling?
mustn't we have been squiggling?
mustn't you have been squiggling?
mustn't they have been squiggling?