must squirm
Regular verb: squirm - squirmed- squirmed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must squirm
you must squirm
she must squirm
we must squirm
you must squirm
they must squirm 	I must be squirming
you must be squirming
she must be squirming
we must be squirming
you must be squirming
they must be squirming	I must have squirmed
you must have squirmed
she must have squirmed
we must have squirmed
you must have squirmed
they must have squirmed	I must have been squirming
you must have been squirming
she must have been squirming
we must have been squirming
you must have been squirming
they must have been squirming	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't squirm
you mustn't squirm
she mustn't squirm
we mustn't squirm
you mustn't squirm
they mustn't squirm 	I mustn't be squirming
you mustn't be squirming
she mustn't be squirming
we mustn't be squirming
you mustn't be squirming
they mustn't be squirming	I mustn't have squirmed
you mustn't have squirmed
she mustn't have squirmed
we mustn't have squirmed
you mustn't have squirmed
they mustn't have squirmed	I mustn't have been squirming
you mustn't have been squirming
she mustn't have been squirming
we mustn't have been squirming
you mustn't have been squirming
they mustn't have been squirming	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I squirm?
must you squirm?
must she squirm?
must we squirm?
must you squirm?
must they squirm? 	must I be squirming?
must you be squirming?
must she be squirming?
must we be squirming?
must you be squirming?
must they be squirming? 	must I have squirmed?
must you have squirmed?
must she have squirmed?
must we have squirmed?
must you have squirmed?
must they have squirmed? 	must I have been squirming?
must you have been squirming?
must she have been squirming?
must we have been squirming?
must you have been squirming?
must they have been squirming? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I squirm?
mustn't you squirm?
mustn't she squirm?
mustn't we squirm?
mustn't you squirm?
mustn't they squirm? 	mustn't I be squirming?
mustn't you be squirming?
mustn't she be squirming?
mustn't we be squirming?
mustn't you be squirming?
mustn't they be squirming? 	mustn't I have squirmed?
mustn't you have squirmed?
mustn't she have squirmed?
mustn't we have squirmed?
mustn't you have squirmed?
mustn't they have squirmed? 	mustn't I have been squirming?
mustn't you have been squirming?
mustn't she have been squirming?
mustn't we have been squirming?
mustn't you have been squirming?
mustn't they have been squirming?