I must seed you must seed she must seed we must seed you must seed they must seed
Forma con V-ing
I must be seeding you must be seeding she must be seeding we must be seeding you must be seeding they must be seeding
Perfecto
I must have seeded you must have seeded she must have seeded we must have seeded you must have seeded they must have seeded
Perfecto con V-ing
I must have been seeding you must have been seeding she must have been seeding we must have been seeding you must have been seeding they must have been seeding
Negación
Forma simple
I mustn't seed you mustn't seed she mustn't seed we mustn't seed you mustn't seed they mustn't seed
Forma con V-ing
I mustn't be seeding you mustn't be seeding she mustn't be seeding we mustn't be seeding you mustn't be seeding they mustn't be seeding
Perfecto
I mustn't have seeded you mustn't have seeded she mustn't have seeded we mustn't have seeded you mustn't have seeded they mustn't have seeded
Perfecto con V-ing
I mustn't have been seeding you mustn't have been seeding she mustn't have been seeding we mustn't have been seeding you mustn't have been seeding they mustn't have been seeding
Forma interrogativa
Forma simple
must I seed? must you seed? must she seed? must we seed? must you seed? must they seed?
Forma con V-ing
must I be seeding? must you be seeding? must she be seeding? must we be seeding? must you be seeding? must they be seeding?
Perfecto
must I have seeded? must you have seeded? must she have seeded? must we have seeded? must you have seeded? must they have seeded?
Perfecto con V-ing
must I have been seeding? must you have been seeding? must she have been seeding? must we have been seeding? must you have been seeding? must they have been seeding?
Forma interro-negativa
Forma simple
mustn't I seed? mustn't you seed? mustn't she seed? mustn't we seed? mustn't you seed? mustn't they seed?
Forma con V-ing
mustn't I be seeding? mustn't you be seeding? mustn't she be seeding? mustn't we be seeding? mustn't you be seeding? mustn't they be seeding?
Perfecto
mustn't I have seeded? mustn't you have seeded? mustn't she have seeded? mustn't we have seeded? mustn't you have seeded? mustn't they have seeded?
Perfecto con V-ing
mustn't I have been seeding? mustn't you have been seeding? mustn't she have been seeding? mustn't we have been seeding? mustn't you have been seeding? mustn't they have been seeding?