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