Breakdown of chinguga naeil doseogwaneseo gati gongbuhajago haesseoyo.
~에서~eseo
location particle
친구chingu
friend
도서관doseogwan
library
내일naeil
tomorrow
Questions & Answers about chinguga naeil doseogwaneseo gati gongbuhajago haesseoyo.
Why is it 친구가 and not 친구는?
Both are possible, but they give slightly different emphasis.
- 친구가 marks friend as the subject of the sentence: My friend said it.
- 친구는 would sound more like as for my friend... and may contrast with someone else.
In this sentence, 친구가 is the most natural neutral choice because you are simply stating who said it.
Why is it 도서관에서 instead of 도서관에?
Because 공부하다 is an action, and 에서 marks the place where an action happens.
- 도서관에서 공부하다 = study at/in the library
- 도서관에 is more about location or destination:
- 도서관에 가다 = go to the library
- 도서관에 있다 = be at the library
So with study, 에서 is correct.
What does 같이 mean here?