I must advise you must advise he must advise we must advise you must advise they must advise
Forma con V-ing
I must be advising you must be advising he must be advising we must be advising you must be advising they must be advising
Perfecto
I must have advised you must have advised he must have advised we must have advised you must have advised they must have advised
Perfecto con V-ing
I must have been advising you must have been advising he must have been advising we must have been advising you must have been advising they must have been advising
Negación
Forma simple
I must not advise you must not advise he must not advise we must not advise you must not advise they must not advise
Forma con V-ing
I must not be advising you must not be advising he must not be advising we must not be advising you must not be advising they must not be advising
Perfecto
I must not have advised you must not have advised he must not have advised we must not have advised you must not have advised they must not have advised
Perfecto con V-ing
I must not have been advising you must not have been advising he must not have been advising we must not have been advising you must not have been advising they must not have been advising
Forma interrogativa
Forma simple
must I advise? must you advise? must he advise? must we advise? must you advise? must they advise?
Forma con V-ing
must I be advising? must you be advising? must he be advising? must we be advising? must you be advising? must they be advising?
Perfecto
must I have advised? must you have advised? must he have advised? must we have advised? must you have advised? must they have advised?
Perfecto con V-ing
must I have been advising? must you have been advising? must he have been advising? must we have been advising? must you have been advising? must they have been advising?
Forma interro-negativa
Forma simple
must I not advise? must you not advise? must he not advise? must we not advise? must you not advise? must they not advise?
Forma con V-ing
must I not be advising? must you not be advising? must he not be advising? must we not be advising? must you not be advising? must they not be advising?
Perfecto
must I not have advised? must you not have advised? must he not have advised? must we not have advised? must you not have advised? must they not have advised?
Perfecto con V-ing
must I not have been advising? must you not have been advising? must he not have been advising? must we not have been advising? must you not have been advising? must they not have been advising?