I must labour you must labour he must labour we must labour you must labour they must labour
Forma con V-ing
I must be labouring you must be labouring he must be labouring we must be labouring you must be labouring they must be labouring
Perfetto
I must have laboured you must have laboured he must have laboured we must have laboured you must have laboured they must have laboured
Perfetto con V-ing
I must have been labouring you must have been labouring he must have been labouring we must have been labouring you must have been labouring they must have been labouring
Negazione
Forma semplice
I must not labour you must not labour he must not labour we must not labour you must not labour they must not labour
Forma con V-ing
I must not be labouring you must not be labouring he must not be labouring we must not be labouring you must not be labouring they must not be labouring
Perfetto
I must not have laboured you must not have laboured he must not have laboured we must not have laboured you must not have laboured they must not have laboured
Perfetto con V-ing
I must not have been labouring you must not have been labouring he must not have been labouring we must not have been labouring you must not have been labouring they must not have been labouring
Forma interrogativa
Forma semplice
must I labour? must you labour? must he labour? must we labour? must you labour? must they labour?
Forma con V-ing
must I be labouring? must you be labouring? must he be labouring? must we be labouring? must you be labouring? must they be labouring?
Perfetto
must I have laboured? must you have laboured? must he have laboured? must we have laboured? must you have laboured? must they have laboured?
Perfetto con V-ing
must I have been labouring? must you have been labouring? must he have been labouring? must we have been labouring? must you have been labouring? must they have been labouring?
Forma interro-negativa
Forma semplice
must I not labour? must you not labour? must he not labour? must we not labour? must you not labour? must they not labour?
Forma con V-ing
must I not be labouring? must you not be labouring? must he not be labouring? must we not be labouring? must you not be labouring? must they not be labouring?
Perfetto
must I not have laboured? must you not have laboured? must he not have laboured? must we not have laboured? must you not have laboured? must they not have laboured?
Perfetto con V-ing
must I not have been labouring? must you not have been labouring? must he not have been labouring? must we not have been labouring? must you not have been labouring? must they not have been labouring?