I must sow you must sow he must sow we must sow you must sow they must sow
Forma con V-ing
I must be sowing you must be sowing he must be sowing we must be sowing you must be sowing they must be sowing
Perfecto
I must have sown, sowed you must have sown, sowed he must have sown, sowed we must have sown, sowed you must have sown, sowed they must have sown, sowed
Perfecto con V-ing
I must have been sowing you must have been sowing he must have been sowing we must have been sowing you must have been sowing they must have been sowing
Negación
Forma simple
I mustn't sow you mustn't sow he mustn't sow we mustn't sow you mustn't sow they mustn't sow
Forma con V-ing
I mustn't be sowing you mustn't be sowing he mustn't be sowing we mustn't be sowing you mustn't be sowing they mustn't be sowing
Perfecto
I mustn't have sown, sowed you mustn't have sown, sowed he mustn't have sown, sowed we mustn't have sown, sowed you mustn't have sown, sowed they mustn't have sown, sowed
Perfecto con V-ing
I mustn't have been sowing you mustn't have been sowing he mustn't have been sowing we mustn't have been sowing you mustn't have been sowing they mustn't have been sowing
Forma interrogativa
Forma simple
must I sow? must you sow? must he sow? must we sow? must you sow? must they sow?
Forma con V-ing
must I be sowing? must you be sowing? must he be sowing? must we be sowing? must you be sowing? must they be sowing?
Perfecto
must I have sown, sowed? must you have sown, sowed? must he have sown, sowed? must we have sown, sowed? must you have sown, sowed? must they have sown, sowed?
Perfecto con V-ing
must I have been sowing? must you have been sowing? must he have been sowing? must we have been sowing? must you have been sowing? must they have been sowing?
Forma interro-negativa
Forma simple
mustn't I sow? mustn't you sow? mustn't he sow? mustn't we sow? mustn't you sow? mustn't they sow?
Forma con V-ing
mustn't I be sowing? mustn't you be sowing? mustn't he be sowing? mustn't we be sowing? mustn't you be sowing? mustn't they be sowing?
Perfecto
mustn't I have sown, sowed? mustn't you have sown, sowed? mustn't he have sown, sowed? mustn't we have sown, sowed? mustn't you have sown, sowed? mustn't they have sown, sowed?
Perfecto con V-ing
mustn't I have been sowing? mustn't you have been sowing? mustn't he have been sowing? mustn't we have been sowing? mustn't you have been sowing? mustn't they have been sowing?