The use of a gerund phrase as the complement (object) of a preposition is idiomatic. Only certain combinations of verbs, prepositions, and objects are possible: He was arrested for robbing a bank. She received a reward for finding the lost statue.
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The use of a gerund phrase as the complement (object) of a prepos
park sang joonBy any chance, can't I take it that "searching for gold" modifies "went" while it expresses the purpose of the subject?With a slight rewording, it can be a gerund phrase, object of the verb "go"