| Many | Adjective | Modifies the noun "words." |
| words | Noun | Names a thing (a lexical item). |
| can | Verb (Auxiliary/Modal) | Helps the main verb "function." |
| function | Verb (Main) | Describes the action. |
| as | Preposition | Shows the relationship to "parts of speech." |
| different | Adjective | Modifies the noun "parts." |
| parts | Noun | Names a thing/concept. |
| of | Preposition | Links "parts" and "speech." |
| speech | Noun | Names a concept/idea. |
| depending | Verb (Participle) | Functions as part of an adverbial phrase. |
| on | Preposition | Part of the prepositional phrase "on how..." |
| how | Adverb/Conjunction | Acts as a conjunction to introduce the clause. |
| they | Pronoun | Replaces a noun (referring to "words"). |
| are | Verb (Auxiliary/Linking) | Part of the verb phrase "are used." |
| used | Verb (Main) | Describes the action/state. |
