I could seed you could seed she could seed we could seed you could seed they could seed
Forma con V-ing
I could be seeding you could be seeding she could be seeding we could be seeding you could be seeding they could be seeding
Perfecto
I could have seeded you could have seeded she could have seeded we could have seeded you could have seeded they could have seeded
Perfecto con V-ing
I could have been seeding you could have been seeding she could have been seeding we could have been seeding you could have been seeding they could have been seeding
Negación
Forma simple
I could not seed you could not seed she could not seed we could not seed you could not seed they could not seed
Forma con V-ing
I could not be seeding you could not be seeding she could not be seeding we could not be seeding you could not be seeding they could not be seeding
Perfecto
I could not have seeded you could not have seeded she could not have seeded we could not have seeded you could not have seeded they could not have seeded
Perfecto con V-ing
I could not have been seeding you could not have been seeding she could not have been seeding we could not have been seeding you could not have been seeding they could not have been seeding
Forma interrogativa
Forma simple
could I seed? could you seed? could she seed? could we seed? could you seed? could they seed?
Forma con V-ing
could I be seeding? could you be seeding? could she be seeding? could we be seeding? could you be seeding? could they be seeding?
Perfecto
could I have seeded? could you have seeded? could she have seeded? could we have seeded? could you have seeded? could they have seeded?
Perfecto con V-ing
could I have been seeding? could you have been seeding? could she have been seeding? could we have been seeding? could you have been seeding? could they have been seeding?
Forma interro-negativa
Forma simple
could I not seed? could you not seed? could she not seed? could we not seed? could you not seed? could they not seed?
Forma con V-ing
could I not be seeding? could you not be seeding? could she not be seeding? could we not be seeding? could you not be seeding? could they not be seeding?
Perfecto
could I not have seeded? could you not have seeded? could she not have seeded? could we not have seeded? could you not have seeded? could they not have seeded?
Perfecto con V-ing
could I not have been seeding? could you not have been seeding? could she not have been seeding? could we not have been seeding? could you not have been seeding? could they not have been seeding?