I must ring you must ring he must ring we must ring you must ring they must ring
Forma con V-ing
I must be ringing you must be ringing he must be ringing we must be ringing you must be ringing they must be ringing
Perfetto
I must have rung you must have rung he must have rung we must have rung you must have rung they must have rung
Perfetto con V-ing
I must have been ringing you must have been ringing he must have been ringing we must have been ringing you must have been ringing they must have been ringing
Negazione
Forma semplice
I must not ring you must not ring he must not ring we must not ring you must not ring they must not ring
Forma con V-ing
I must not be ringing you must not be ringing he must not be ringing we must not be ringing you must not be ringing they must not be ringing
Perfetto
I must not have rung you must not have rung he must not have rung we must not have rung you must not have rung they must not have rung
Perfetto con V-ing
I must not have been ringing you must not have been ringing he must not have been ringing we must not have been ringing you must not have been ringing they must not have been ringing
Forma interrogativa
Forma semplice
must I ring? must you ring? must he ring? must we ring? must you ring? must they ring?
Forma con V-ing
must I be ringing? must you be ringing? must he be ringing? must we be ringing? must you be ringing? must they be ringing?
Perfetto
must I have rung? must you have rung? must he have rung? must we have rung? must you have rung? must they have rung?
Perfetto con V-ing
must I have been ringing? must you have been ringing? must he have been ringing? must we have been ringing? must you have been ringing? must they have been ringing?
Forma interro-negativa
Forma semplice
must I not ring? must you not ring? must he not ring? must we not ring? must you not ring? must they not ring?
Forma con V-ing
must I not be ringing? must you not be ringing? must he not be ringing? must we not be ringing? must you not be ringing? must they not be ringing?
Perfetto
must I not have rung? must you not have rung? must he not have rung? must we not have rung? must you not have rung? must they not have rung?
Perfetto con V-ing
must I not have been ringing? must you not have been ringing? must he not have been ringing? must we not have been ringing? must you not have been ringing? must they not have been ringing?