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