I must prove you must prove he must prove we must prove you must prove they must prove
Forma con V-ing
I must be proving you must be proving he must be proving we must be proving you must be proving they must be proving
Perfetto
I must have proven you must have proven he must have proven we must have proven you must have proven they must have proven
Perfetto con V-ing
I must have been proving you must have been proving he must have been proving we must have been proving you must have been proving they must have been proving
Negazione
Forma semplice
I must not prove you must not prove he must not prove we must not prove you must not prove they must not prove
Forma con V-ing
I must not be proving you must not be proving he must not be proving we must not be proving you must not be proving they must not be proving
Perfetto
I must not have proven you must not have proven he must not have proven we must not have proven you must not have proven they must not have proven
Perfetto con V-ing
I must not have been proving you must not have been proving he must not have been proving we must not have been proving you must not have been proving they must not have been proving
Forma interrogativa
Forma semplice
must I prove? must you prove? must he prove? must we prove? must you prove? must they prove?
Forma con V-ing
must I be proving? must you be proving? must he be proving? must we be proving? must you be proving? must they be proving?
Perfetto
must I have proven? must you have proven? must he have proven? must we have proven? must you have proven? must they have proven?
Perfetto con V-ing
must I have been proving? must you have been proving? must he have been proving? must we have been proving? must you have been proving? must they have been proving?
Forma interro-negativa
Forma semplice
must I not prove? must you not prove? must he not prove? must we not prove? must you not prove? must they not prove?
Forma con V-ing
must I not be proving? must you not be proving? must he not be proving? must we not be proving? must you not be proving? must they not be proving?
Perfetto
must I not have proven? must you not have proven? must he not have proven? must we not have proven? must you not have proven? must they not have proven?
Perfetto con V-ing
must I not have been proving? must you not have been proving? must he not have been proving? must we not have been proving? must you not have been proving? must they not have been proving?