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