Interrogatives II: 어디 / 언제 / 왜 / 어떻게

After "who" and "what" come the four question words that cover place, time, reason, and manner: 어디 (where), 언제 (when), 왜 (why), and 어떻게 (how). English lets you treat all four the same way — you just plug the wh-word in and go. Korean does not, and the reason is invisible from the English side: these four words belong to different grammatical classes, and the class decides whether the word takes a particle. 어디 is secretly a noun and demands location particles; 왜 and 어떻게 are adverbs and stay bare. Miss this, and your questions come out with the wrong particles — or missing ones. Master it, and the particles choose themselves.

Like all Korean question words, these stay in place — no fronting. If that idea is new, see wh-in-situ on the previous page.

어디 — "where" — behaves like a noun

This is the key insight of the page. 어디 is grammatically a noun, so it takes the same location particles any place noun does. That means you have to choose between them exactly as you would for 학교 or 집:

• 어디에 — to/at where (a destination or a static point): 에
• 어디에서 / 어디서 — from where, or where an action happens: 에서
• 어디예요? — where is it? (as a predicate)
• 어디에 있어요? — where is X located?

Whether you need 에 or 에서 depends on the verb — destination and existence take 에, dynamic action and origin take 에서. It's the same choice as any location noun, so 에 vs 에서 governs 어디 too.

And because 어디 is a full noun, it also accepts the other place particles: 어디까지 ("up to where / how far"), 어디로 ("in which direction"), 어디부터 ("starting from where"). Each is just 어디 wearing the particle a place noun would wear:

언제 — "when" — usually bare, but flexible

언제 ("when") normally needs no particle at all — it stands alone like a time adverb:

But because 언제 refers to a point in time, it can host the range particles 부터 ("from") and 까지 ("until") when you want to mark a span:

왜 and 어떻게 — "why" and "how" — pure adverbs

왜 ("why") and 어떻게 ("how, in what way") pattern like adverbs: they attach to nothing and take no particle. You simply place them before the verb.

Two pronunciation notes on 어떻게. First, the ㅎ + ㄱ fuse to an aspirated sound, so it's said [어떠케] (eotteoke). Second, 어떻게 descends from the descriptive verb 어떻다 ("to be how / to be in what state") — which is why it has cousins that learners constantly mix up.

Keeping 어떻게, 어떤, and 어때요 apart

Because all three come from 어떻다, they crowd together in learners' minds. They are not interchangeable — each has a fixed slot:

The determiner 어떤 ("what kind / which") belongs with 무슨 and 어느 — the full comparison lives on 어느 / 어떤 / 무슨. The predicate 어때요 is a complete question by itself and is how you ask for an opinion or a state ("how is it?").

Standalone and idiomatic uses

Two of these words stand alone as complete utterances. 왜? (polite 왜요?) is a one-word "Why? / What is it? / What's up?" — the reflexive thing you say when someone calls your name or you sense something's off. It carries a hint of "is something the matter?", so use it gently with people you're not close to.

And a crucial preview: 어디 and 언제 lead the same double life as 누구 and 뭐 — with the right intonation they flip from question words into indefinites. 어디 becomes "somewhere," 언제 becomes "sometime." So 어디 아파요? isn't "where does it hurt?" but "does it hurt somewhere? / are you unwell?" — 어디 here means "some place (unspecified)."

This interrogative/indefinite split is systematic across all the question words and gets full treatment on question words as indefinites. For now: falling or neutral intonation tends toward the indefinite reading, a clear rise toward the true question.

Common Mistakes

1. Wrong particle on 어디: destination vs. source. "Where are you from" is about origin, which takes 에서 (or the reduced 어디서), not 에. 어디에 왔어요 would mean "where did you arrive at."

2. Sticking a particle on 왜, 어떻게, or 언제. These are adverbs — bare. By false analogy with 어디에, learners invent ×언제에 or ×왜에.

3. Using 어떻게 (how) where you need 어떤 (what kind). 어떻게 modifies a verb; to modify a noun — "what kind of movie" — you need the determiner 어떤.

4. Using 어떻게 where you need the predicate 어때요. "How's the weather?" asks about a state, not a manner of doing — that's 어때요, not 어떻게.

5. Confusing the spellings 어떻게 and 어떡해. They sound almost the same but do different jobs. 어떻게 is the adverb "how." 어떡해 is a contraction of 어떻게 해 — "what do I do?" — a full exclamation of distress. Even natives slip here in writing.

Key Takeaways

• 어디 ("where") is grammatically a noun — it takes location particles: 어디에 (destination/existence), 어디에서 / 어디서 (source/action).
• 언제 ("when") is normally bare, but can host 부터 / 까지 for a time span.
• 왜 ("why") and 어떻게 ("how") are adverbs — no particle, ever. 어떻게 is pronounced [어떠케].
• Keep the 어떻다 family apart: 어떻게 (adverb, before a verb), 어떤 (determiner, before a noun), 어때요 (predicate, "how is it?").
• Watch the spelling pair: 어떻게 = "how"; 어떡해 = "what do I do?!"