I must change you must change he must change we must change you must change they must change
Forma con V-ing
I must be changing you must be changing he must be changing we must be changing you must be changing they must be changing
Perfetto
I must have changed you must have changed he must have changed we must have changed you must have changed they must have changed
Perfetto con V-ing
I must have been changing you must have been changing he must have been changing we must have been changing you must have been changing they must have been changing
Negazione
Forma semplice
I must not change you must not change he must not change we must not change you must not change they must not change
Forma con V-ing
I must not be changing you must not be changing he must not be changing we must not be changing you must not be changing they must not be changing
Perfetto
I must not have changed you must not have changed he must not have changed we must not have changed you must not have changed they must not have changed
Perfetto con V-ing
I must not have been changing you must not have been changing he must not have been changing we must not have been changing you must not have been changing they must not have been changing
Forma interrogativa
Forma semplice
must I change? must you change? must he change? must we change? must you change? must they change?
Forma con V-ing
must I be changing? must you be changing? must he be changing? must we be changing? must you be changing? must they be changing?
Perfetto
must I have changed? must you have changed? must he have changed? must we have changed? must you have changed? must they have changed?
Perfetto con V-ing
must I have been changing? must you have been changing? must he have been changing? must we have been changing? must you have been changing? must they have been changing?
Forma interro-negativa
Forma semplice
must I not change? must you not change? must he not change? must we not change? must you not change? must they not change?
Forma con V-ing
must I not be changing? must you not be changing? must he not be changing? must we not be changing? must you not be changing? must they not be changing?
Perfetto
must I not have changed? must you not have changed? must he not have changed? must we not have changed? must you not have changed? must they not have changed?
Perfetto con V-ing
must I not have been changing? must you not have been changing? must he not have been changing? must we not have been changing? must you not have been changing? must they not have been changing?