must house
Verbo regular: house - housed- housed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must house
you must house
he must house
we must house
you must house
they must house 	I must be housing
you must be housing
he must be housing
we must be housing
you must be housing
they must be housing	I must have housed
you must have housed
he must have housed
we must have housed
you must have housed
they must have housed	I must have been housing
you must have been housing
he must have been housing
we must have been housing
you must have been housing
they must have been housing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not house
you must not house
he must not house
we must not house
you must not house
they must not house 	I must not be housing
you must not be housing
he must not be housing
we must not be housing
you must not be housing
they must not be housing	I must not have housed
you must not have housed
he must not have housed
we must not have housed
you must not have housed
they must not have housed	I must not have been housing
you must not have been housing
he must not have been housing
we must not have been housing
you must not have been housing
they must not have been housing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I house?
must you house?
must he house?
must we house?
must you house?
must they house? 	must I be housing?
must you be housing?
must he be housing?
must we be housing?
must you be housing?
must they be housing? 	must I have housed?
must you have housed?
must he have housed?
must we have housed?
must you have housed?
must they have housed? 	must I have been housing?
must you have been housing?
must he have been housing?
must we have been housing?
must you have been housing?
must they have been housing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not house?
must you not house?
must he not house?
must we not house?
must you not house?
must they not house? 	must I not be housing?
must you not be housing?
must he not be housing?
must we not be housing?
must you not be housing?
must they not be housing? 	must I not have housed?
must you not have housed?
must he not have housed?
must we not have housed?
must you not have housed?
must they not have housed? 	must I not have been housing?
must you not have been housing?
must he not have been housing?
must we not have been housing?
must you not have been housing?
must they not have been housing?