Different verbs: 1. is copular, whereas 2. and 3. are not. "asleep" functions as an adverb in 2. and 3. It modifies the verb.Originally Posted by notmyname216
In 1. "asleep" modifies a noun, the subject. Adjectives describe people, places, and things; adverbs "add to" the meaning of verbs, adjectives, and other adverbs.
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