must gumshoe
Verbo regular: gumshoe - gumshoed- gumshoed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must gumshoe
you must gumshoe
he must gumshoe
we must gumshoe
you must gumshoe
they must gumshoe 	I must be gumshoing
you must be gumshoing
he must be gumshoing
we must be gumshoing
you must be gumshoing
they must be gumshoing	I must have gumshoed
you must have gumshoed
he must have gumshoed
we must have gumshoed
you must have gumshoed
they must have gumshoed	I must have been gumshoing
you must have been gumshoing
he must have been gumshoing
we must have been gumshoing
you must have been gumshoing
they must have been gumshoing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not gumshoe
you must not gumshoe
he must not gumshoe
we must not gumshoe
you must not gumshoe
they must not gumshoe 	I must not be gumshoing
you must not be gumshoing
he must not be gumshoing
we must not be gumshoing
you must not be gumshoing
they must not be gumshoing	I must not have gumshoed
you must not have gumshoed
he must not have gumshoed
we must not have gumshoed
you must not have gumshoed
they must not have gumshoed	I must not have been gumshoing
you must not have been gumshoing
he must not have been gumshoing
we must not have been gumshoing
you must not have been gumshoing
they must not have been gumshoing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I gumshoe?
must you gumshoe?
must he gumshoe?
must we gumshoe?
must you gumshoe?
must they gumshoe? 	must I be gumshoing?
must you be gumshoing?
must he be gumshoing?
must we be gumshoing?
must you be gumshoing?
must they be gumshoing? 	must I have gumshoed?
must you have gumshoed?
must he have gumshoed?
must we have gumshoed?
must you have gumshoed?
must they have gumshoed? 	must I have been gumshoing?
must you have been gumshoing?
must he have been gumshoing?
must we have been gumshoing?
must you have been gumshoing?
must they have been gumshoing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not gumshoe?
must you not gumshoe?
must he not gumshoe?
must we not gumshoe?
must you not gumshoe?
must they not gumshoe? 	must I not be gumshoing?
must you not be gumshoing?
must he not be gumshoing?
must we not be gumshoing?
must you not be gumshoing?
must they not be gumshoing? 	must I not have gumshoed?
must you not have gumshoed?
must he not have gumshoed?
must we not have gumshoed?
must you not have gumshoed?
must they not have gumshoed? 	must I not have been gumshoing?
must you not have been gumshoing?
must he not have been gumshoing?
must we not have been gumshoing?
must you not have been gumshoing?
must they not have been gumshoing?