I must operate you must operate he must operate we must operate you must operate they must operate
Forma con V-ing
I must be operating you must be operating he must be operating we must be operating you must be operating they must be operating
Perfetto
I must have operated you must have operated he must have operated we must have operated you must have operated they must have operated
Perfetto con V-ing
I must have been operating you must have been operating he must have been operating we must have been operating you must have been operating they must have been operating
Negazione
Forma semplice
I must not operate you must not operate he must not operate we must not operate you must not operate they must not operate
Forma con V-ing
I must not be operating you must not be operating he must not be operating we must not be operating you must not be operating they must not be operating
Perfetto
I must not have operated you must not have operated he must not have operated we must not have operated you must not have operated they must not have operated
Perfetto con V-ing
I must not have been operating you must not have been operating he must not have been operating we must not have been operating you must not have been operating they must not have been operating
Forma interrogativa
Forma semplice
must I operate? must you operate? must he operate? must we operate? must you operate? must they operate?
Forma con V-ing
must I be operating? must you be operating? must he be operating? must we be operating? must you be operating? must they be operating?
Perfetto
must I have operated? must you have operated? must he have operated? must we have operated? must you have operated? must they have operated?
Perfetto con V-ing
must I have been operating? must you have been operating? must he have been operating? must we have been operating? must you have been operating? must they have been operating?
Forma interro-negativa
Forma semplice
must I not operate? must you not operate? must he not operate? must we not operate? must you not operate? must they not operate?
Forma con V-ing
must I not be operating? must you not be operating? must he not be operating? must we not be operating? must you not be operating? must they not be operating?
Perfetto
must I not have operated? must you not have operated? must he not have operated? must we not have operated? must you not have operated? must they not have operated?
Perfetto con V-ing
must I not have been operating? must you not have been operating? must he not have been operating? must we not have been operating? must you not have been operating? must they not have been operating?