I must specialise you must specialise he must specialise we must specialise you must specialise they must specialise
Form mit V-ing
I must be specialising you must be specialising he must be specialising we must be specialising you must be specialising they must be specialising
Perfekt
I must have specialised you must have specialised he must have specialised we must have specialised you must have specialised they must have specialised
Perfekt mit V-ing
I must have been specialising you must have been specialising he must have been specialising we must have been specialising you must have been specialising they must have been specialising
Negation
Einfache Form
I mustn't specialise you mustn't specialise he mustn't specialise we mustn't specialise you mustn't specialise they mustn't specialise
Form mit V-ing
I mustn't be specialising you mustn't be specialising he mustn't be specialising we mustn't be specialising you mustn't be specialising they mustn't be specialising
Perfekt
I mustn't have specialised you mustn't have specialised he mustn't have specialised we mustn't have specialised you mustn't have specialised they mustn't have specialised
Perfekt mit V-ing
I mustn't have been specialising you mustn't have been specialising he mustn't have been specialising we mustn't have been specialising you mustn't have been specialising they mustn't have been specialising
Fragende Form
Einfache Form
must I specialise? must you specialise? must he specialise? must we specialise? must you specialise? must they specialise?
Form mit V-ing
must I be specialising? must you be specialising? must he be specialising? must we be specialising? must you be specialising? must they be specialising?
Perfekt
must I have specialised? must you have specialised? must he have specialised? must we have specialised? must you have specialised? must they have specialised?
Perfekt mit V-ing
must I have been specialising? must you have been specialising? must he have been specialising? must we have been specialising? must you have been specialising? must they have been specialising?
Fragende Negation Form
Einfache Form
mustn't I specialise? mustn't you specialise? mustn't he specialise? mustn't we specialise? mustn't you specialise? mustn't they specialise?
Form mit V-ing
mustn't I be specialising? mustn't you be specialising? mustn't he be specialising? mustn't we be specialising? mustn't you be specialising? mustn't they be specialising?
Perfekt
mustn't I have specialised? mustn't you have specialised? mustn't he have specialised? mustn't we have specialised? mustn't you have specialised? mustn't they have specialised?
Perfekt mit V-ing
mustn't I have been specialising? mustn't you have been specialising? mustn't he have been specialising? mustn't we have been specialising? mustn't you have been specialising? mustn't they have been specialising?