Position of Adjectives: An adjective nearly always appears immediately before the noun or noun phrase that they modify. The source is here.
But if you look at the following sentence, the adjective "unconscious" doesn't appear before a noun, why? The source of the 1st and 3rd are here. The source of the second is here.
- He was knocked unconscious by a fall.
- An injured motorcyclist is lying unconscious in the road.
- She was unconscious for three days after the accident.
In the 2nd sentence, why can't it be "unconsciously"? Lying is a verb, so "lying unconsciously" is valid, is itn't?