must snowshoe
Regular verb: snowshoe - snowshoed- snowshoed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must snowshoe
you must snowshoe
he must snowshoe
we must snowshoe
you must snowshoe
they must snowshoe 	I must be snowshoing
you must be snowshoing
he must be snowshoing
we must be snowshoing
you must be snowshoing
they must be snowshoing	I must have snowshoed
you must have snowshoed
he must have snowshoed
we must have snowshoed
you must have snowshoed
they must have snowshoed	I must have been snowshoing
you must have been snowshoing
he must have been snowshoing
we must have been snowshoing
you must have been snowshoing
they must have been snowshoing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't snowshoe
you mustn't snowshoe
he mustn't snowshoe
we mustn't snowshoe
you mustn't snowshoe
they mustn't snowshoe 	I mustn't be snowshoing
you mustn't be snowshoing
he mustn't be snowshoing
we mustn't be snowshoing
you mustn't be snowshoing
they mustn't be snowshoing	I mustn't have snowshoed
you mustn't have snowshoed
he mustn't have snowshoed
we mustn't have snowshoed
you mustn't have snowshoed
they mustn't have snowshoed	I mustn't have been snowshoing
you mustn't have been snowshoing
he mustn't have been snowshoing
we mustn't have been snowshoing
you mustn't have been snowshoing
they mustn't have been snowshoing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I snowshoe?
must you snowshoe?
must he snowshoe?
must we snowshoe?
must you snowshoe?
must they snowshoe? 	must I be snowshoing?
must you be snowshoing?
must he be snowshoing?
must we be snowshoing?
must you be snowshoing?
must they be snowshoing? 	must I have snowshoed?
must you have snowshoed?
must he have snowshoed?
must we have snowshoed?
must you have snowshoed?
must they have snowshoed? 	must I have been snowshoing?
must you have been snowshoing?
must he have been snowshoing?
must we have been snowshoing?
must you have been snowshoing?
must they have been snowshoing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I snowshoe?
mustn't you snowshoe?
mustn't he snowshoe?
mustn't we snowshoe?
mustn't you snowshoe?
mustn't they snowshoe? 	mustn't I be snowshoing?
mustn't you be snowshoing?
mustn't he be snowshoing?
mustn't we be snowshoing?
mustn't you be snowshoing?
mustn't they be snowshoing? 	mustn't I have snowshoed?
mustn't you have snowshoed?
mustn't he have snowshoed?
mustn't we have snowshoed?
mustn't you have snowshoed?
mustn't they have snowshoed? 	mustn't I have been snowshoing?
mustn't you have been snowshoing?
mustn't he have been snowshoing?
mustn't we have been snowshoing?
mustn't you have been snowshoing?
mustn't they have been snowshoing?