I must devitalise you must devitalise she must devitalise we must devitalise you must devitalise they must devitalise
Form mit V-ing
I must be devitalising you must be devitalising she must be devitalising we must be devitalising you must be devitalising they must be devitalising
Perfekt
I must have devitalised you must have devitalised she must have devitalised we must have devitalised you must have devitalised they must have devitalised
Perfekt mit V-ing
I must have been devitalising you must have been devitalising she must have been devitalising we must have been devitalising you must have been devitalising they must have been devitalising
Negation
Einfache Form
I mustn't devitalise you mustn't devitalise she mustn't devitalise we mustn't devitalise you mustn't devitalise they mustn't devitalise
Form mit V-ing
I mustn't be devitalising you mustn't be devitalising she mustn't be devitalising we mustn't be devitalising you mustn't be devitalising they mustn't be devitalising
Perfekt
I mustn't have devitalised you mustn't have devitalised she mustn't have devitalised we mustn't have devitalised you mustn't have devitalised they mustn't have devitalised
Perfekt mit V-ing
I mustn't have been devitalising you mustn't have been devitalising she mustn't have been devitalising we mustn't have been devitalising you mustn't have been devitalising they mustn't have been devitalising
Fragende Form
Einfache Form
must I devitalise? must you devitalise? must she devitalise? must we devitalise? must you devitalise? must they devitalise?
Form mit V-ing
must I be devitalising? must you be devitalising? must she be devitalising? must we be devitalising? must you be devitalising? must they be devitalising?
Perfekt
must I have devitalised? must you have devitalised? must she have devitalised? must we have devitalised? must you have devitalised? must they have devitalised?
Perfekt mit V-ing
must I have been devitalising? must you have been devitalising? must she have been devitalising? must we have been devitalising? must you have been devitalising? must they have been devitalising?
Fragende Negation Form
Einfache Form
mustn't I devitalise? mustn't you devitalise? mustn't she devitalise? mustn't we devitalise? mustn't you devitalise? mustn't they devitalise?
Form mit V-ing
mustn't I be devitalising? mustn't you be devitalising? mustn't she be devitalising? mustn't we be devitalising? mustn't you be devitalising? mustn't they be devitalising?
Perfekt
mustn't I have devitalised? mustn't you have devitalised? mustn't she have devitalised? mustn't we have devitalised? mustn't you have devitalised? mustn't they have devitalised?
Perfekt mit V-ing
mustn't I have been devitalising? mustn't you have been devitalising? mustn't she have been devitalising? mustn't we have been devitalising? mustn't you have been devitalising? mustn't they have been devitalising?