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