geuga choegeune undongeul sijakhan iyuga mwoya?

what

Breakdown of geuga choegeune undongeul sijakhan iyuga mwoya?

• ~을: object particle
• 이다: to be
• ~가: subject particle

Questions & Answers about geuga choegeune undongeul sijakhan iyuga mwoya?

Why is it 그가 instead of 그는?

• The phrase 그가 최근에 운동을 시작한 is a relative clause modifying 이유. Inside relative clauses, the subject is normally marked with 이/가, so 그가 is the default.
• If you use 그는, you’re topicalizing him at the sentence level: 그는 최근에 운동을 시작한 이유가 뭐야? means “As for him, what’s the reason…?” It’s acceptable but slightly different in structure/nuance from embedding him as the subject of the modifier.

Can I drop 그가?

• Yes. Korean often omits pronouns when clear from context. 최근에 운동을 시작한 이유가 뭐야? is very natural.
• In real conversation, speakers also prefer a name or title over 그. Use 그 only if the referent is already clear and you really need a pronoun.

Why ask with … 이유가 뭐야? instead of just using 왜?

• Both are fine. 왜 …? is the direct adverb “why,” e.g., 왜 최근에 운동을 시작했어?
• … 이유가 뭐야? literally asks “what is the reason,” which can feel a bit more explanatory or careful in tone. It invites an explicit reason rather than a simple cause.

What’s the difference among 최근에, 최근, and 요즘?