I must concentrate you must concentrate she must concentrate we must concentrate you must concentrate they must concentrate
Form mit V-ing
I must be concentrating you must be concentrating she must be concentrating we must be concentrating you must be concentrating they must be concentrating
Perfekt
I must have concentrated you must have concentrated she must have concentrated we must have concentrated you must have concentrated they must have concentrated
Perfekt mit V-ing
I must have been concentrating you must have been concentrating she must have been concentrating we must have been concentrating you must have been concentrating they must have been concentrating
Negation
Einfache Form
I mustn't concentrate you mustn't concentrate she mustn't concentrate we mustn't concentrate you mustn't concentrate they mustn't concentrate
Form mit V-ing
I mustn't be concentrating you mustn't be concentrating she mustn't be concentrating we mustn't be concentrating you mustn't be concentrating they mustn't be concentrating
Perfekt
I mustn't have concentrated you mustn't have concentrated she mustn't have concentrated we mustn't have concentrated you mustn't have concentrated they mustn't have concentrated
Perfekt mit V-ing
I mustn't have been concentrating you mustn't have been concentrating she mustn't have been concentrating we mustn't have been concentrating you mustn't have been concentrating they mustn't have been concentrating
Fragende Form
Einfache Form
must I concentrate? must you concentrate? must she concentrate? must we concentrate? must you concentrate? must they concentrate?
Form mit V-ing
must I be concentrating? must you be concentrating? must she be concentrating? must we be concentrating? must you be concentrating? must they be concentrating?
Perfekt
must I have concentrated? must you have concentrated? must she have concentrated? must we have concentrated? must you have concentrated? must they have concentrated?
Perfekt mit V-ing
must I have been concentrating? must you have been concentrating? must she have been concentrating? must we have been concentrating? must you have been concentrating? must they have been concentrating?
Fragende Negation Form
Einfache Form
mustn't I concentrate? mustn't you concentrate? mustn't she concentrate? mustn't we concentrate? mustn't you concentrate? mustn't they concentrate?
Form mit V-ing
mustn't I be concentrating? mustn't you be concentrating? mustn't she be concentrating? mustn't we be concentrating? mustn't you be concentrating? mustn't they be concentrating?
Perfekt
mustn't I have concentrated? mustn't you have concentrated? mustn't she have concentrated? mustn't we have concentrated? mustn't you have concentrated? mustn't they have concentrated?
Perfekt mit V-ing
mustn't I have been concentrating? mustn't you have been concentrating? mustn't she have been concentrating? mustn't we have been concentrating? mustn't you have been concentrating? mustn't they have been concentrating?