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