The Nuance Difference: "時々" vs "買い物する"

In Japanese, both 時々 and 買い物する are often translated to English but have distinct usages. 時々 (ときどき (tokidoki)) represents "sometimes" (Level: N5) and typically represents Adverb of frequency. Indicates something happens occasionally, not always. Can also be written in hiragana. On the other hand, 買い物する (かいものする (kaimono suru)) translates to "to do shopping" (Level: N4) and is used for Used when referring to the act of buying things, typically at a store. Can be used with に. Mixing these up can sound unnatural to native Japanese speakers!