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