must voyage
Verbo regular: voyage - voyaged- voyaged

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must voyage
you must voyage
he must voyage
we must voyage
you must voyage
they must voyage 	I must be voyaging
you must be voyaging
he must be voyaging
we must be voyaging
you must be voyaging
they must be voyaging	I must have voyaged
you must have voyaged
he must have voyaged
we must have voyaged
you must have voyaged
they must have voyaged	I must have been voyaging
you must have been voyaging
he must have been voyaging
we must have been voyaging
you must have been voyaging
they must have been voyaging	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not voyage
you must not voyage
he must not voyage
we must not voyage
you must not voyage
they must not voyage 	I must not be voyaging
you must not be voyaging
he must not be voyaging
we must not be voyaging
you must not be voyaging
they must not be voyaging	I must not have voyaged
you must not have voyaged
he must not have voyaged
we must not have voyaged
you must not have voyaged
they must not have voyaged	I must not have been voyaging
you must not have been voyaging
he must not have been voyaging
we must not have been voyaging
you must not have been voyaging
they must not have been voyaging	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I voyage?
must you voyage?
must he voyage?
must we voyage?
must you voyage?
must they voyage? 	must I be voyaging?
must you be voyaging?
must he be voyaging?
must we be voyaging?
must you be voyaging?
must they be voyaging? 	must I have voyaged?
must you have voyaged?
must he have voyaged?
must we have voyaged?
must you have voyaged?
must they have voyaged? 	must I have been voyaging?
must you have been voyaging?
must he have been voyaging?
must we have been voyaging?
must you have been voyaging?
must they have been voyaging? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not voyage?
must you not voyage?
must he not voyage?
must we not voyage?
must you not voyage?
must they not voyage? 	must I not be voyaging?
must you not be voyaging?
must he not be voyaging?
must we not be voyaging?
must you not be voyaging?
must they not be voyaging? 	must I not have voyaged?
must you not have voyaged?
must he not have voyaged?
must we not have voyaged?
must you not have voyaged?
must they not have voyaged? 	must I not have been voyaging?
must you not have been voyaging?
must he not have been voyaging?
must we not have been voyaging?
must you not have been voyaging?
must they not have been voyaging?