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