must vizor
Verbo regular: vizor - vizored- vizored

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must vizor
you must vizor
he must vizor
we must vizor
you must vizor
they must vizor 	I must be vizoring
you must be vizoring
he must be vizoring
we must be vizoring
you must be vizoring
they must be vizoring	I must have vizored
you must have vizored
he must have vizored
we must have vizored
you must have vizored
they must have vizored	I must have been vizoring
you must have been vizoring
he must have been vizoring
we must have been vizoring
you must have been vizoring
they must have been vizoring	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't vizor
you mustn't vizor
he mustn't vizor
we mustn't vizor
you mustn't vizor
they mustn't vizor 	I mustn't be vizoring
you mustn't be vizoring
he mustn't be vizoring
we mustn't be vizoring
you mustn't be vizoring
they mustn't be vizoring	I mustn't have vizored
you mustn't have vizored
he mustn't have vizored
we mustn't have vizored
you mustn't have vizored
they mustn't have vizored	I mustn't have been vizoring
you mustn't have been vizoring
he mustn't have been vizoring
we mustn't have been vizoring
you mustn't have been vizoring
they mustn't have been vizoring	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I vizor?
must you vizor?
must he vizor?
must we vizor?
must you vizor?
must they vizor? 	must I be vizoring?
must you be vizoring?
must he be vizoring?
must we be vizoring?
must you be vizoring?
must they be vizoring? 	must I have vizored?
must you have vizored?
must he have vizored?
must we have vizored?
must you have vizored?
must they have vizored? 	must I have been vizoring?
must you have been vizoring?
must he have been vizoring?
must we have been vizoring?
must you have been vizoring?
must they have been vizoring? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I vizor?
mustn't you vizor?
mustn't he vizor?
mustn't we vizor?
mustn't you vizor?
mustn't they vizor? 	mustn't I be vizoring?
mustn't you be vizoring?
mustn't he be vizoring?
mustn't we be vizoring?
mustn't you be vizoring?
mustn't they be vizoring? 	mustn't I have vizored?
mustn't you have vizored?
mustn't he have vizored?
mustn't we have vizored?
mustn't you have vizored?
mustn't they have vizored? 	mustn't I have been vizoring?
mustn't you have been vizoring?
mustn't he have been vizoring?
mustn't we have been vizoring?
mustn't you have been vizoring?
mustn't they have been vizoring?