I must err you must err he must err we must err you must err they must err
Form mit V-ing
I must be erring you must be erring he must be erring we must be erring you must be erring they must be erring
Perfekt
I must have erred you must have erred he must have erred we must have erred you must have erred they must have erred
Perfekt mit V-ing
I must have been erring you must have been erring he must have been erring we must have been erring you must have been erring they must have been erring
Negation
Einfache Form
I mustn't err you mustn't err he mustn't err we mustn't err you mustn't err they mustn't err
Form mit V-ing
I mustn't be erring you mustn't be erring he mustn't be erring we mustn't be erring you mustn't be erring they mustn't be erring
Perfekt
I mustn't have erred you mustn't have erred he mustn't have erred we mustn't have erred you mustn't have erred they mustn't have erred
Perfekt mit V-ing
I mustn't have been erring you mustn't have been erring he mustn't have been erring we mustn't have been erring you mustn't have been erring they mustn't have been erring
Fragende Form
Einfache Form
must I err? must you err? must he err? must we err? must you err? must they err?
Form mit V-ing
must I be erring? must you be erring? must he be erring? must we be erring? must you be erring? must they be erring?
Perfekt
must I have erred? must you have erred? must he have erred? must we have erred? must you have erred? must they have erred?
Perfekt mit V-ing
must I have been erring? must you have been erring? must he have been erring? must we have been erring? must you have been erring? must they have been erring?
Fragende Negation Form
Einfache Form
mustn't I err? mustn't you err? mustn't he err? mustn't we err? mustn't you err? mustn't they err?
Form mit V-ing
mustn't I be erring? mustn't you be erring? mustn't he be erring? mustn't we be erring? mustn't you be erring? mustn't they be erring?
Perfekt
mustn't I have erred? mustn't you have erred? mustn't he have erred? mustn't we have erred? mustn't you have erred? mustn't they have erred?
Perfekt mit V-ing
mustn't I have been erring? mustn't you have been erring? mustn't he have been erring? mustn't we have been erring? mustn't you have been erring? mustn't they have been erring?