must hugger-mugger
Regular verb: hugger-mugger - hugger-muggered- hugger-muggered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must hugger-mugger
you must hugger-mugger
he must hugger-mugger
we must hugger-mugger
you must hugger-mugger
they must hugger-mugger 	I must be hugger-muggering
you must be hugger-muggering
he must be hugger-muggering
we must be hugger-muggering
you must be hugger-muggering
they must be hugger-muggering	I must have hugger-muggered
you must have hugger-muggered
he must have hugger-muggered
we must have hugger-muggered
you must have hugger-muggered
they must have hugger-muggered	I must have been hugger-muggering
you must have been hugger-muggering
he must have been hugger-muggering
we must have been hugger-muggering
you must have been hugger-muggering
they must have been hugger-muggering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't hugger-mugger
you mustn't hugger-mugger
he mustn't hugger-mugger
we mustn't hugger-mugger
you mustn't hugger-mugger
they mustn't hugger-mugger 	I mustn't be hugger-muggering
you mustn't be hugger-muggering
he mustn't be hugger-muggering
we mustn't be hugger-muggering
you mustn't be hugger-muggering
they mustn't be hugger-muggering	I mustn't have hugger-muggered
you mustn't have hugger-muggered
he mustn't have hugger-muggered
we mustn't have hugger-muggered
you mustn't have hugger-muggered
they mustn't have hugger-muggered	I mustn't have been hugger-muggering
you mustn't have been hugger-muggering
he mustn't have been hugger-muggering
we mustn't have been hugger-muggering
you mustn't have been hugger-muggering
they mustn't have been hugger-muggering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I hugger-mugger?
must you hugger-mugger?
must he hugger-mugger?
must we hugger-mugger?
must you hugger-mugger?
must they hugger-mugger? 	must I be hugger-muggering?
must you be hugger-muggering?
must he be hugger-muggering?
must we be hugger-muggering?
must you be hugger-muggering?
must they be hugger-muggering? 	must I have hugger-muggered?
must you have hugger-muggered?
must he have hugger-muggered?
must we have hugger-muggered?
must you have hugger-muggered?
must they have hugger-muggered? 	must I have been hugger-muggering?
must you have been hugger-muggering?
must he have been hugger-muggering?
must we have been hugger-muggering?
must you have been hugger-muggering?
must they have been hugger-muggering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I hugger-mugger?
mustn't you hugger-mugger?
mustn't he hugger-mugger?
mustn't we hugger-mugger?
mustn't you hugger-mugger?
mustn't they hugger-mugger? 	mustn't I be hugger-muggering?
mustn't you be hugger-muggering?
mustn't he be hugger-muggering?
mustn't we be hugger-muggering?
mustn't you be hugger-muggering?
mustn't they be hugger-muggering? 	mustn't I have hugger-muggered?
mustn't you have hugger-muggered?
mustn't he have hugger-muggered?
mustn't we have hugger-muggered?
mustn't you have hugger-muggered?
mustn't they have hugger-muggered? 	mustn't I have been hugger-muggering?
mustn't you have been hugger-muggering?
mustn't he have been hugger-muggering?
mustn't we have been hugger-muggering?
mustn't you have been hugger-muggering?
mustn't they have been hugger-muggering?