은 그가

as for …, he

→ 은

phrase Rare #25,017

as for …, he 은 marks the topic, and 그가 means “he” as the subject. The topic and subject may be translated more naturally in a different order in English.

KO: 이 계획은 그가 세웠어요.

EN: He came up with this plan.

톰은 그가 뭘 해야 할지 모른다.

Tom doesn't know what he should do.

톰은 그가 필요했던 모든 것을 살 수 있었다.

Tom was able to buy everything he needed.