must snowshoe
Verbo regular: snowshoe - snowshoed- snowshoed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must snowshoe
you must snowshoe
she must snowshoe
we must snowshoe
you must snowshoe
they must snowshoe 	I must be snowshoing
you must be snowshoing
she must be snowshoing
we must be snowshoing
you must be snowshoing
they must be snowshoing	I must have snowshoed
you must have snowshoed
she 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
she must have been snowshoing
we must have been snowshoing
you must have been snowshoing
they must have been snowshoing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't snowshoe
you mustn't snowshoe
she 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
she 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
she 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
she mustn't have been snowshoing
we mustn't have been snowshoing
you mustn't have been snowshoing
they mustn't have been snowshoing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I snowshoe?
must you snowshoe?
must she snowshoe?
must we snowshoe?
must you snowshoe?
must they snowshoe? 	must I be snowshoing?
must you be snowshoing?
must she be snowshoing?
must we be snowshoing?
must you be snowshoing?
must they be snowshoing? 	must I have snowshoed?
must you have snowshoed?
must she 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 she have been snowshoing?
must we have been snowshoing?
must you have been snowshoing?
must they have been snowshoing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I snowshoe?
mustn't you snowshoe?
mustn't she 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 she 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 she 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 she have been snowshoing?
mustn't we have been snowshoing?
mustn't you have been snowshoing?
mustn't they have been snowshoing?