I must fox you must fox he must fox we must fox you must fox they must fox
Forma con V-ing
I must be foxing you must be foxing he must be foxing we must be foxing you must be foxing they must be foxing
Perfecto
I must have foxed you must have foxed he must have foxed we must have foxed you must have foxed they must have foxed
Perfecto con V-ing
I must have been foxing you must have been foxing he must have been foxing we must have been foxing you must have been foxing they must have been foxing
Negación
Forma simple
I must not fox you must not fox he must not fox we must not fox you must not fox they must not fox
Forma con V-ing
I must not be foxing you must not be foxing he must not be foxing we must not be foxing you must not be foxing they must not be foxing
Perfecto
I must not have foxed you must not have foxed he must not have foxed we must not have foxed you must not have foxed they must not have foxed
Perfecto con V-ing
I must not have been foxing you must not have been foxing he must not have been foxing we must not have been foxing you must not have been foxing they must not have been foxing
Forma interrogativa
Forma simple
must I fox? must you fox? must he fox? must we fox? must you fox? must they fox?
Forma con V-ing
must I be foxing? must you be foxing? must he be foxing? must we be foxing? must you be foxing? must they be foxing?
Perfecto
must I have foxed? must you have foxed? must he have foxed? must we have foxed? must you have foxed? must they have foxed?
Perfecto con V-ing
must I have been foxing? must you have been foxing? must he have been foxing? must we have been foxing? must you have been foxing? must they have been foxing?
Forma interro-negativa
Forma simple
must I not fox? must you not fox? must he not fox? must we not fox? must you not fox? must they not fox?
Forma con V-ing
must I not be foxing? must you not be foxing? must he not be foxing? must we not be foxing? must you not be foxing? must they not be foxing?
Perfecto
must I not have foxed? must you not have foxed? must he not have foxed? must we not have foxed? must you not have foxed? must they not have foxed?
Perfecto con V-ing
must I not have been foxing? must you not have been foxing? must he not have been foxing? must we not have been foxing? must you not have been foxing? must they not have been foxing?