Four Ways to Correct a Korean Mistake — and Which One You Need
Quick answer: There are four main ways to correct a spoken Korean mistake — recast (reformulating it correctly without comment), metalinguistic (naming the rule), explicit (saying plainly that it was wrong and giving the right form) and elicitation (pausing so you self-correct). If you say 저는 어제 학교에 가요, a recast simply answers "아, 어제 학교에 갔어요 (gasseoyo)?" and moves on, while explicit correction tells you straight that it should be 갔어요. Explicit correction brings the fastest accuracy gains but the highest dropout; recasting keeps you talking but is easy to miss entirely.
Short answer: second-language research recognises several distinct ways to correct a spoken error — the main four being recast (reformulate it correctly without comment), metalinguistic (name the rule), explicit (state plainly that it was wrong and give the right form) and elicitation (prompt the learner to self-correct). They are not interchangeable. Explicit correction produces the fastest accuracy gains and the highest dropout; recasting keeps people talking and is easy to miss entirely.
Most language apps pick one of these, apply it to everybody, and never mention it. It's worth knowing which one you're getting, because it explains a lot about why an app either clicks with you or quietly makes you dread opening it.
The four types

Recast. You say 저는 어제 학교에 가요. The teacher replies "아, 어제 학교에 갔어요?" and carries on. The correction is embedded in a natural response — no interruption, no lecture.
Good for: keeping momentum, and for learners who freeze when corrected. Risk: it's genuinely easy to not notice you were corrected at all. Learners often hear a recast as agreement.
Metalinguistic. "You used the present tense, but 어제 is past. Korean marks past tense with -았/었-, so 가요 becomes 갔어요."
Good for: analytical learners, and for errors that come from not knowing a rule rather than not applying it. Risk: slow, and it turns a conversation into a lesson.
Explicit. "That's wrong — it should be 갔어요."
Good for: speed and unambiguity. Nobody misses an explicit correction. Risk: it's the correction style most associated with learners disengaging, especially adults who are already self-conscious about speaking badly.
Elicitation. "저는 어제 학교에…?" — and waits for you to finish it correctly.
Good for: retention. Retrieving the right form yourself encodes it far better than hearing it. Risk: if you don't know the answer, the pause is excruciating and produces nothing.
Why the choice matters more in Korean
Two reasons specific to Korean.
Errors cluster in morphology, not word order. Most learner mistakes are conjugation, particle choice and speech level — small changes to endings. Recasts of these are especially easy to miss, because the sentence sounds nearly identical to what you said. Miss it, and you repeat the mistake for months.
Speech level errors are social, not grammatical. Using 반말 with someone you shouldn't isn't a grammar mistake, it's a rudeness. Recasting it teaches the form but not the stakes. This is one case where explicit correction genuinely serves the learner better.
Matching a style to yourself
Be honest about which of these you are:
- You stop talking when corrected. You need recast. Fluency first, accuracy later — you can't fix speech that isn't happening.
- You want to know why. Metalinguistic. You'll find recasts frustratingly vague and wonder why nothing is being explained.
- You want to be told straight. Explicit. Gentler styles will feel like the app is being evasive.
- You already know the rules but don't apply them under pressure. Elicitation. Your problem is retrieval, not knowledge, and only retrieval practice fixes retrieval.
Most people need different styles at different stages. Recast early when the priority is getting words out at all; explicit and elicitation later when the priority is accuracy.
How HanDa handles it
HanDa ships four AI teachers, and the difference between them is exactly this — the correction method, not the personality skin:
| Teacher | Method | Pacing |
|---|---|---|
| Soo | Recast — reformulates without interrupting | Gentle |
| Jiyeon | Metalinguistic — names and explains the rule | Standard |
| Junho | Recast, casual register and slang | Fast |
| Minjun | Explicit — states the error directly and drills it | Aggressive |
You can switch at any time, and switching is the point. A common pattern that works: start with Soo until speaking stops feeling frightening, move to Jiyeon while you're building grammar, then use Minjun when you're preparing for something with real stakes like a test or a trip.
If you're using a different app, it's still worth working out which of the four you're getting. It's usually obvious after three or four corrections, and it explains most of how the app feels to use.
FAQ
what is a recast in language learning
A recast is when your teacher repeats what you said in corrected form inside a natural reply, without stopping to explain. You say 저는 어제 학교에 가요 and the answer comes back as "아, 어제 학교에 갔어요?" — conversation continues, nothing is flagged. It protects momentum and suits learners who freeze when corrected, but many learners hear a recast as simple agreement and never register that anything was fixed.
which correction style is best for a Korean beginner
If being corrected makes you stop talking, start with recasts — you can't fix speech that isn't happening, so fluency comes first and accuracy later. Once speaking feels less frightening, metalinguistic feedback helps while you are building grammar, and explicit correction or elicitation works better when accuracy matters, such as before a test or a trip. Most people need different styles at different stages rather than one forever.
why are recasts risky for Korean grammar mistakes
Most Korean learner errors sit in morphology — conjugation, particle choice and speech level — so the corrected sentence sounds almost identical to what you said and the fix slips past you. Miss it and you can repeat the same mistake for months. Speech level is the clearest case: using 반말 with the wrong person is a social problem, not just a grammatical one, so explicit correction genuinely serves the learner better there.
Related reading
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