English verb conjugation
COULD SEED

Regular verb: seed - seeded - seeded

Affirmation

Simple form	V-ing form
I could seed you could seed he could seed we could seed you could seed they could seed	I could be seeding you could be seeding he could be seeding we could be seeding you could be seeding they could be seeding
Perfect	V-ing perfect
I could have seeded you could have seeded he could have seeded we could have seeded you could have seeded they could have seeded	I could have been seeding you could have been seeding he could have been seeding we could have been seeding you could have been seeding they could have been seeding

Negation

Simple form	V-ing form
I could not seed you could not seed he could not seed we could not seed you could not seed they could not seed	I could not be seeding you could not be seeding he could not be seeding we could not be seeding you could not be seeding they could not be seeding
Perfect	V-ing perfect
I could not have seeded you could not have seeded he could not have seeded we could not have seeded you could not have seeded they could not have seeded	I could not have been seeding you could not have been seeding he could not have been seeding we could not have been seeding you could not have been seeding they could not have been seeding

Interrogative form

Simple form	V-ing form
could I seed? could you seed? could he seed? could we seed? could you seed? could they seed?	could I be seeding? could you be seeding? could he be seeding? could we be seeding? could you be seeding? could they be seeding?
Perfect	V-ing perfect
could I have seeded? could you have seeded? could he have seeded? could we have seeded? could you have seeded? could they have seeded?	could I have been seeding? could you have been seeding? could he have been seeding? could we have been seeding? could you have been seeding? could they have been seeding?

Interro-negative form

Simple form	V-ing form
could I not seed? could you not seed? could he not seed? could we not seed? could you not seed? could they not seed?	could I not be seeding? could you not be seeding? could he not be seeding? could we not be seeding? could you not be seeding? could they not be seeding?
Perfect	V-ing perfect
could I not have seeded? could you not have seeded? could he not have seeded? could we not have seeded? could you not have seeded? could they not have seeded?	could I not have been seeding? could you not have been seeding? could he not have been seeding? could we not have been seeding? could you not have been seeding? could they not have been seeding?