User31968user31968 4133 bronze badges sixteen 2 "Grocery" within the OP's illustration sentence features as an adverb as it modifies the verb "shop" in grocery store. Were being "shop" a noun in this phrase, the noun grocery can be working as an adjective since it'd be modifying the noun "store". Streamline https://genep653tgq5.theblogfairy.com/profile