I must sob you must sob she must sob we must sob you must sob they must sob
Forma con V-ing
I must be sobbing you must be sobbing she must be sobbing we must be sobbing you must be sobbing they must be sobbing
Perfecto
I must have sobbed you must have sobbed she must have sobbed we must have sobbed you must have sobbed they must have sobbed
Perfecto con V-ing
I must have been sobbing you must have been sobbing she must have been sobbing we must have been sobbing you must have been sobbing they must have been sobbing
Negación
Forma simple
I mustn't sob you mustn't sob she mustn't sob we mustn't sob you mustn't sob they mustn't sob
Forma con V-ing
I mustn't be sobbing you mustn't be sobbing she mustn't be sobbing we mustn't be sobbing you mustn't be sobbing they mustn't be sobbing
Perfecto
I mustn't have sobbed you mustn't have sobbed she mustn't have sobbed we mustn't have sobbed you mustn't have sobbed they mustn't have sobbed
Perfecto con V-ing
I mustn't have been sobbing you mustn't have been sobbing she mustn't have been sobbing we mustn't have been sobbing you mustn't have been sobbing they mustn't have been sobbing
Forma interrogativa
Forma simple
must I sob? must you sob? must she sob? must we sob? must you sob? must they sob?
Forma con V-ing
must I be sobbing? must you be sobbing? must she be sobbing? must we be sobbing? must you be sobbing? must they be sobbing?
Perfecto
must I have sobbed? must you have sobbed? must she have sobbed? must we have sobbed? must you have sobbed? must they have sobbed?
Perfecto con V-ing
must I have been sobbing? must you have been sobbing? must she have been sobbing? must we have been sobbing? must you have been sobbing? must they have been sobbing?
Forma interro-negativa
Forma simple
mustn't I sob? mustn't you sob? mustn't she sob? mustn't we sob? mustn't you sob? mustn't they sob?
Forma con V-ing
mustn't I be sobbing? mustn't you be sobbing? mustn't she be sobbing? mustn't we be sobbing? mustn't you be sobbing? mustn't they be sobbing?
Perfecto
mustn't I have sobbed? mustn't you have sobbed? mustn't she have sobbed? mustn't we have sobbed? mustn't you have sobbed? mustn't they have sobbed?
Perfecto con V-ing
mustn't I have been sobbing? mustn't you have been sobbing? mustn't she have been sobbing? mustn't we have been sobbing? mustn't you have been sobbing? mustn't they have been sobbing?