No, “some” is not a preposition. It functions as a determiner, pronoun, or adverb, depending on the context.
Uses of “Some”:
- As a Determiner (Modifies a noun to indicate an unspecified quantity or amount)
- She bought some ingredients for the new dish.
- The restaurant has some great menu options.
- As a Pronoun (Replaces a noun to refer to an unspecified quantity)
- I didn’t take all the pastries, just some.
- Would you like some?
- As an Adverb (Modifying adjectives or adverbs, meaning “to some extent” or “rather”)
- The food was some better than last time.
- The new POS system is some faster.
Why “Some” Is Not a Preposition
- Prepositions (e.g., in, on, under, about) show relationships between words.
- “Some” does not establish a relationship between a noun/pronoun and another part of the sentence; instead, it indicates quantity or degree.
Thus, “some” is a determiner, pronoun, or adverb, but not a preposition.