I must liven you must liven he must liven we must liven you must liven they must liven
Forma con V-ing
I must be livening you must be livening he must be livening we must be livening you must be livening they must be livening
Perfecto
I must have livened you must have livened he must have livened we must have livened you must have livened they must have livened
Perfecto con V-ing
I must have been livening you must have been livening he must have been livening we must have been livening you must have been livening they must have been livening
Negación
Forma simple
I mustn't liven you mustn't liven he mustn't liven we mustn't liven you mustn't liven they mustn't liven
Forma con V-ing
I mustn't be livening you mustn't be livening he mustn't be livening we mustn't be livening you mustn't be livening they mustn't be livening
Perfecto
I mustn't have livened you mustn't have livened he mustn't have livened we mustn't have livened you mustn't have livened they mustn't have livened
Perfecto con V-ing
I mustn't have been livening you mustn't have been livening he mustn't have been livening we mustn't have been livening you mustn't have been livening they mustn't have been livening
Forma interrogativa
Forma simple
must I liven? must you liven? must he liven? must we liven? must you liven? must they liven?
Forma con V-ing
must I be livening? must you be livening? must he be livening? must we be livening? must you be livening? must they be livening?
Perfecto
must I have livened? must you have livened? must he have livened? must we have livened? must you have livened? must they have livened?
Perfecto con V-ing
must I have been livening? must you have been livening? must he have been livening? must we have been livening? must you have been livening? must they have been livening?
Forma interro-negativa
Forma simple
mustn't I liven? mustn't you liven? mustn't he liven? mustn't we liven? mustn't you liven? mustn't they liven?
Forma con V-ing
mustn't I be livening? mustn't you be livening? mustn't he be livening? mustn't we be livening? mustn't you be livening? mustn't they be livening?
Perfecto
mustn't I have livened? mustn't you have livened? mustn't he have livened? mustn't we have livened? mustn't you have livened? mustn't they have livened?
Perfecto con V-ing
mustn't I have been livening? mustn't you have been livening? mustn't he have been livening? mustn't we have been livening? mustn't you have been livening? mustn't they have been livening?