Location Particles

에 vs 에서: the one choice that decides both

Most particle pairs are annoying. This one is worth the trouble, because 에 and 에서 come up in almost every sentence you'll ever say about where you are or what you're doing.

The rule under the rule

Textbooks usually say 에 is "at" and 에서 is "at". Which is true and completely useless.

Here's the version that actually works. Ask what the verb is doing. If the verb is about being somewhere — existing, staying, arriving — the place takes 에. If the verb is an action performed somewhere, the place takes 에서.

• 집에 있어요. (jib-e isseoyo) — "I'm at home." 있다 is existence, so 에.
• 집에서 자요. (jib-eseo jayo) — "I sleep at home." Sleeping is something you do, so 에서.

Same house. The house didn't change; the verb did.

Where learners get it wrong

The mistake I made for months was treating 에 as the default and reaching for it whenever I saw a place.

• 학교에 공부해요. ✗
• 학교에서 공부해요. (hakgyo-eseo gongbuhaeyo) ✓ — "I study at school."

공부하다 (gongbuhada, "to study") is an action, so the school is where the action happens, and that's 에서 every time.

The reverse trap is just as common:

• 학교에서 가요. ✗
• 학교에 가요. (hakgyo-e gayo) ✓ — "I go to school."

Going somewhere makes the place a destination, not a workplace. Destinations take 에.

에서 also means "from"

This is the second job people forget. 에서 marks where something started.

• 한국에서 왔어요. (hangug-eseo wasseoyo) — "I came from Korea."
• 서울에서 부산까지 (seoul-eseo busan-kkaji) — "from Seoul to Busan"

So 에서 covers both "the place the action happens" and "the place it came from". Context separates them without much effort, because the verb tells you which one you're looking at.

에 does time, and 에서 never does

에 has a whole second life that has nothing to do with place.

• 세 시에 만나요. (se si-e mannayo) — "Let's meet at three."
• 월요일에 시작해요. (woryoil-e sijakhaeyo) — "It starts on Monday."
• 2월에 갈 거예요. (i-wol-e gal geoyeyo) — "I'll go in February."

There is no 에서 for time. If you're marking when, the answer is 에 or nothing at all.

And "nothing at all" is the trap. The everyday time words refuse the particle:

• 오늘 만나요. (oneul mannayo) — "Let's meet today." Never 오늘에.
• 내일 갈게요. (naeil galgeyo) — "I'll go tomorrow." Never 내일에.

The same goes for 어제 (eoje, "yesterday"), 지금 (jigeum, "now") and 언제 (eonje, "when"). Clock times, dates and days of the week take 에; the words that already mean a time on their own don't.

The two-second check

When you're mid-sentence and stuck, run this:

1. Am I marking a time? Then 에, unless it's 오늘 / 내일 / 어제, which take nothing. 2. Am I marking a place? Then look at the verb. 3. Is the verb about being or going there? 에. 4. Is the verb something you do there, or is the place where you came from? 에서.

If you want to see the pair lined up against each other in more detail, there's a full comparison page for it.