I must scan you must scan she must scan we must scan you must scan they must scan
Forma con V-ing
I must be scanning you must be scanning she must be scanning we must be scanning you must be scanning they must be scanning
Perfecto
I must have scanned you must have scanned she must have scanned we must have scanned you must have scanned they must have scanned
Perfecto con V-ing
I must have been scanning you must have been scanning she must have been scanning we must have been scanning you must have been scanning they must have been scanning
Negación
Forma simple
I mustn't scan you mustn't scan she mustn't scan we mustn't scan you mustn't scan they mustn't scan
Forma con V-ing
I mustn't be scanning you mustn't be scanning she mustn't be scanning we mustn't be scanning you mustn't be scanning they mustn't be scanning
Perfecto
I mustn't have scanned you mustn't have scanned she mustn't have scanned we mustn't have scanned you mustn't have scanned they mustn't have scanned
Perfecto con V-ing
I mustn't have been scanning you mustn't have been scanning she mustn't have been scanning we mustn't have been scanning you mustn't have been scanning they mustn't have been scanning
Forma interrogativa
Forma simple
must I scan? must you scan? must she scan? must we scan? must you scan? must they scan?
Forma con V-ing
must I be scanning? must you be scanning? must she be scanning? must we be scanning? must you be scanning? must they be scanning?
Perfecto
must I have scanned? must you have scanned? must she have scanned? must we have scanned? must you have scanned? must they have scanned?
Perfecto con V-ing
must I have been scanning? must you have been scanning? must she have been scanning? must we have been scanning? must you have been scanning? must they have been scanning?
Forma interro-negativa
Forma simple
mustn't I scan? mustn't you scan? mustn't she scan? mustn't we scan? mustn't you scan? mustn't they scan?
Forma con V-ing
mustn't I be scanning? mustn't you be scanning? mustn't she be scanning? mustn't we be scanning? mustn't you be scanning? mustn't they be scanning?
Perfecto
mustn't I have scanned? mustn't you have scanned? mustn't she have scanned? mustn't we have scanned? mustn't you have scanned? mustn't they have scanned?
Perfecto con V-ing
mustn't I have been scanning? mustn't you have been scanning? mustn't she have been scanning? mustn't we have been scanning? mustn't you have been scanning? mustn't they have been scanning?