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