Sentence
“Unlike nouns, verbs and adverbs cannot be replaced by pronouns or another part of speech.”
Preposition: unlike, by
Nouns: nouns, verbs, adverbs, pronouns, part, speech
Verb: can (modal), be (auxiliary), replaced (main verb) — verb phrase: cannot be replaced
Conjunction: and, or
Determiner: another
Adverb: not