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