I must stifle you must stifle he must stifle we must stifle you must stifle they must stifle
Forma con V-ing
I must be stifling you must be stifling he must be stifling we must be stifling you must be stifling they must be stifling
Perfetto
I must have stifled you must have stifled he must have stifled we must have stifled you must have stifled they must have stifled
Perfetto con V-ing
I must have been stifling you must have been stifling he must have been stifling we must have been stifling you must have been stifling they must have been stifling
Negazione
Forma semplice
I must not stifle you must not stifle he must not stifle we must not stifle you must not stifle they must not stifle
Forma con V-ing
I must not be stifling you must not be stifling he must not be stifling we must not be stifling you must not be stifling they must not be stifling
Perfetto
I must not have stifled you must not have stifled he must not have stifled we must not have stifled you must not have stifled they must not have stifled
Perfetto con V-ing
I must not have been stifling you must not have been stifling he must not have been stifling we must not have been stifling you must not have been stifling they must not have been stifling
Forma interrogativa
Forma semplice
must I stifle? must you stifle? must he stifle? must we stifle? must you stifle? must they stifle?
Forma con V-ing
must I be stifling? must you be stifling? must he be stifling? must we be stifling? must you be stifling? must they be stifling?
Perfetto
must I have stifled? must you have stifled? must he have stifled? must we have stifled? must you have stifled? must they have stifled?
Perfetto con V-ing
must I have been stifling? must you have been stifling? must he have been stifling? must we have been stifling? must you have been stifling? must they have been stifling?
Forma interro-negativa
Forma semplice
must I not stifle? must you not stifle? must he not stifle? must we not stifle? must you not stifle? must they not stifle?
Forma con V-ing
must I not be stifling? must you not be stifling? must he not be stifling? must we not be stifling? must you not be stifling? must they not be stifling?
Perfetto
must I not have stifled? must you not have stifled? must he not have stifled? must we not have stifled? must you not have stifled? must they not have stifled?
Perfetto con V-ing
must I not have been stifling? must you not have been stifling? must he not have been stifling? must we not have been stifling? must you not have been stifling? must they not have been stifling?