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