I must prolong you must prolong he must prolong we must prolong you must prolong they must prolong
Forma con V-ing
I must be prolonging you must be prolonging he must be prolonging we must be prolonging you must be prolonging they must be prolonging
Perfetto
I must have prolonged you must have prolonged he must have prolonged we must have prolonged you must have prolonged they must have prolonged
Perfetto con V-ing
I must have been prolonging you must have been prolonging he must have been prolonging we must have been prolonging you must have been prolonging they must have been prolonging
Negazione
Forma semplice
I mustn't prolong you mustn't prolong he mustn't prolong we mustn't prolong you mustn't prolong they mustn't prolong
Forma con V-ing
I mustn't be prolonging you mustn't be prolonging he mustn't be prolonging we mustn't be prolonging you mustn't be prolonging they mustn't be prolonging
Perfetto
I mustn't have prolonged you mustn't have prolonged he mustn't have prolonged we mustn't have prolonged you mustn't have prolonged they mustn't have prolonged
Perfetto con V-ing
I mustn't have been prolonging you mustn't have been prolonging he mustn't have been prolonging we mustn't have been prolonging you mustn't have been prolonging they mustn't have been prolonging
Forma interrogativa
Forma semplice
must I prolong? must you prolong? must he prolong? must we prolong? must you prolong? must they prolong?
Forma con V-ing
must I be prolonging? must you be prolonging? must he be prolonging? must we be prolonging? must you be prolonging? must they be prolonging?
Perfetto
must I have prolonged? must you have prolonged? must he have prolonged? must we have prolonged? must you have prolonged? must they have prolonged?
Perfetto con V-ing
must I have been prolonging? must you have been prolonging? must he have been prolonging? must we have been prolonging? must you have been prolonging? must they have been prolonging?
Forma interro-negativa
Forma semplice
mustn't I prolong? mustn't you prolong? mustn't he prolong? mustn't we prolong? mustn't you prolong? mustn't they prolong?
Forma con V-ing
mustn't I be prolonging? mustn't you be prolonging? mustn't he be prolonging? mustn't we be prolonging? mustn't you be prolonging? mustn't they be prolonging?
Perfetto
mustn't I have prolonged? mustn't you have prolonged? mustn't he have prolonged? mustn't we have prolonged? mustn't you have prolonged? mustn't they have prolonged?
Perfetto con V-ing
mustn't I have been prolonging? mustn't you have been prolonging? mustn't he have been prolonging? mustn't we have been prolonging? mustn't you have been prolonging? mustn't they have been prolonging?