I must justify you must justify he must justify we must justify you must justify they must justify
Forma con V-ing
I must be justifying you must be justifying he must be justifying we must be justifying you must be justifying they must be justifying
Perfecto
I must have justified you must have justified he must have justified we must have justified you must have justified they must have justified
Perfecto con V-ing
I must have been justifying you must have been justifying he must have been justifying we must have been justifying you must have been justifying they must have been justifying
Negación
Forma simple
I mustn't justify you mustn't justify he mustn't justify we mustn't justify you mustn't justify they mustn't justify
Forma con V-ing
I mustn't be justifying you mustn't be justifying he mustn't be justifying we mustn't be justifying you mustn't be justifying they mustn't be justifying
Perfecto
I mustn't have justified you mustn't have justified he mustn't have justified we mustn't have justified you mustn't have justified they mustn't have justified
Perfecto con V-ing
I mustn't have been justifying you mustn't have been justifying he mustn't have been justifying we mustn't have been justifying you mustn't have been justifying they mustn't have been justifying
Forma interrogativa
Forma simple
must I justify? must you justify? must he justify? must we justify? must you justify? must they justify?
Forma con V-ing
must I be justifying? must you be justifying? must he be justifying? must we be justifying? must you be justifying? must they be justifying?
Perfecto
must I have justified? must you have justified? must he have justified? must we have justified? must you have justified? must they have justified?
Perfecto con V-ing
must I have been justifying? must you have been justifying? must he have been justifying? must we have been justifying? must you have been justifying? must they have been justifying?
Forma interro-negativa
Forma simple
mustn't I justify? mustn't you justify? mustn't he justify? mustn't we justify? mustn't you justify? mustn't they justify?
Forma con V-ing
mustn't I be justifying? mustn't you be justifying? mustn't he be justifying? mustn't we be justifying? mustn't you be justifying? mustn't they be justifying?
Perfecto
mustn't I have justified? mustn't you have justified? mustn't he have justified? mustn't we have justified? mustn't you have justified? mustn't they have justified?
Perfecto con V-ing
mustn't I have been justifying? mustn't you have been justifying? mustn't he have been justifying? mustn't we have been justifying? mustn't you have been justifying? mustn't they have been justifying?