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