must housebreak
Verbo irregular: housebreak - housebroke- housebroken

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must housebreak
you must housebreak
he must housebreak
we must housebreak
you must housebreak
they must housebreak 	I must be housebreaking
you must be housebreaking
he must be housebreaking
we must be housebreaking
you must be housebreaking
they must be housebreaking	I must have housebroken
you must have housebroken
he must have housebroken
we must have housebroken
you must have housebroken
they must have housebroken	I must have been housebreaking
you must have been housebreaking
he must have been housebreaking
we must have been housebreaking
you must have been housebreaking
they must have been housebreaking	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not housebreak
you must not housebreak
he must not housebreak
we must not housebreak
you must not housebreak
they must not housebreak 	I must not be housebreaking
you must not be housebreaking
he must not be housebreaking
we must not be housebreaking
you must not be housebreaking
they must not be housebreaking	I must not have housebroken
you must not have housebroken
he must not have housebroken
we must not have housebroken
you must not have housebroken
they must not have housebroken	I must not have been housebreaking
you must not have been housebreaking
he must not have been housebreaking
we must not have been housebreaking
you must not have been housebreaking
they must not have been housebreaking	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I housebreak?
must you housebreak?
must he housebreak?
must we housebreak?
must you housebreak?
must they housebreak? 	must I be housebreaking?
must you be housebreaking?
must he be housebreaking?
must we be housebreaking?
must you be housebreaking?
must they be housebreaking? 	must I have housebroken?
must you have housebroken?
must he have housebroken?
must we have housebroken?
must you have housebroken?
must they have housebroken? 	must I have been housebreaking?
must you have been housebreaking?
must he have been housebreaking?
must we have been housebreaking?
must you have been housebreaking?
must they have been housebreaking? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not housebreak?
must you not housebreak?
must he not housebreak?
must we not housebreak?
must you not housebreak?
must they not housebreak? 	must I not be housebreaking?
must you not be housebreaking?
must he not be housebreaking?
must we not be housebreaking?
must you not be housebreaking?
must they not be housebreaking? 	must I not have housebroken?
must you not have housebroken?
must he not have housebroken?
must we not have housebroken?
must you not have housebroken?
must they not have housebroken? 	must I not have been housebreaking?
must you not have been housebreaking?
must he not have been housebreaking?
must we not have been housebreaking?
must you not have been housebreaking?
must they not have been housebreaking?