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AI Keigo Correction Risks

2026-07-04Kind Japanese

AI for keigo correction risks start with a simple problem: an AI can make Japanese sound more polite without knowing who is speaking, who is listening, and what relationship they have. Keigo is not only “formal Japanese.” It is a way to manage respect, distance, humility, and situation.

Use AI as a first-pass keigo checker, not as the final decision maker. The safer workflow is to ask AI for options, then ask a teacher whether the level fits the listener and whether the sentence still sounds natural.

Check Relationship First

Before accepting an AI keigo correction, write down the relationship.

Ask:

  • Who am I speaking to?
  • Am I writing or speaking?
  • Is this a teacher, customer, manager, landlord, interviewer, or close coworker?
  • Do I need humble language for myself or honorific language for the other person?
  • Do I want to sound polite, respectful, apologetic, or simply clear?

AI often makes a sentence more formal because “formal” looks safer. But over-formality can sound distant, stiff, or unnatural. Under-formality can sound rude. The right keigo depends on the social relationship.

Cultural note: keigo choices in Japanese are context-dependent. A sentence for a customer email can be too heavy for a LINE message to a teacher, and a sentence for a close coworker can be too casual for a school office.

If you need the basics before using AI, Keigo Explained for Beginners gives the core categories.

Keigo Risk Table

Use this table to catch common AI correction risks.

Japanese Point

Romaji

English Meaning / Function

Risk to Check

尊敬語

Sonkeigo

Honorific language for the other person

Did AI raise the other person, not you?

謙譲語

Kenjōgo

Humble language for yourself or your side

Did AI make your own action humble when needed?

丁寧語

Teineigo

です・ます / desu/masu / polite sentence endings

Did AI only add polite endings without fixing relationship?

伺います

Ukagaimasu

I will visit / ask humbly

Is the speaker talking about their own action?

いらっしゃいます

Irasshaimasu

Someone goes, comes, or is honorifically

Is the subject the respected other person?

いただきます

Itadakimasu

I receive humbly

Is the speaker receiving a favor or action?

くださいます

Kudasaimasu

The other person gives kindly

Is the respected person doing something for the speaker?

ご確認ください

Go-kakunin kudasai

Please check

Is this appropriate, or too direct for the situation?

よろしいでしょうか

Yoroshii deshō ka

Would that be all right?

Is the question polite without becoming too indirect?

The danger is not one wrong word. The danger is mixing the direction of respect. If AI uses humble language for the other person’s action, or honorific language for your own action, the sentence can sound strange even when it looks advanced.

Compare AI and Teacher Review

AI can suggest a polished version quickly. A teacher can check the social logic.

Example 1:

明日、先生のところに伺います。 Ashita, sensei no tokoro ni ukagaimasu. I will visit my teacher tomorrow.

This can be natural because 先生のところに伺います (sensei no tokoro ni ukagaimasu, I will visit my teacher's place humbly) describes your own visit toward a respected person.

Example 2:

先生が明日いらっしゃいます。 Sensei ga ashita irasshaimasu. The teacher will come tomorrow.

This can be natural because いらっしゃいます (irasshaimasu, comes / goes / is honorifically) raises the teacher’s action.

Example 3:

資料をご確認いただけますか。 Shiryō o go-kakunin itadakemasu ka. Could you check the document?

This is polite, but a teacher may still ask: is the listener a customer, teacher, manager, or close coworker? That answer decides whether the sentence is right or too heavy.

Example 4:

少々お待ちいただけますか。 Shōshō o-machi itadakemasu ka. Could you please wait a moment?

This is useful for customer-facing situations because it humbly asks the listener to give you the favor of waiting. For a casual LINE message to a teacher, it may be heavier than necessary.

Example 5:

ご説明いただき、ありがとうございます。 Go-setsumei itadaki, arigatō gozaimasu. Thank you for explaining it to me.

This can work when you received an explanation from a teacher, office worker, or manager. The teacher should still check whether the phrase fits the medium and relationship.

For more practice with a person, Keigo Practice With a Tutor is the closest internal follow-up.

Teacher Review Questions

Bring one AI correction to a teacher and ask focused questions.

Useful questions:

  • Did the AI choose sonkeigo, kenjōgo, or teineigo?
  • Is the respect direction correct?
  • Is this too formal for LINE?
  • Would this sound natural in speech?
  • What is the simpler safe version?

Before the lesson, you can ask AI for a structured keigo check instead of a vague correction.

Copy this prompt:

Check this Japanese sentence for keigo. Identify the speaker, listener, action owner, sonkeigo, kenjōgo, and teineigo. Then give one natural LINE-safe version and explain what changed.

Then mark the verbs before you accept the answer.

Example:

  • Speaker: me
  • Listener: teacher
  • Action: I visit the teacher's place
  • Verb: 伺います / ukagaimasu / I visit humbly
  • Direction: my action is humbled toward the teacher

This diagnostic step matters because AI may choose a polished verb without checking whose action it describes. A teacher can look at the same markings and quickly tell you whether the respect direction is correct.

Before/after workflow:

  • AI correction: a very formal sentence that looks impressive.
  • Teacher check: who is the listener, and what is the actual relationship?
  • Final version: the shortest polite sentence that fits the situation.

This is especially important for apologies, requests, interviews, school office messages, and customer communication. The goal is not maximum formality. The goal is appropriate respect.

LINE Practice Flow

Use a 25-minute one-on-one LINE lesson to check one keigo sentence.

A focused flow:

  • Send the original sentence and AI correction.
  • Explain who the listener is.
  • Say whether it is spoken or written.
  • Ask the teacher to mark the keigo type.
  • Practise the natural version aloud.
  • Make one simpler fallback sentence.

This keeps the lesson practical. Instead of asking for “perfect keigo,” you review one real sentence and learn how to judge the level next time.

Common Mistakes

In lessons, teachers often see learners accept keigo that is grammatically polished but socially mismatched.

Using maximum formality everywhere. More keigo is not always better. Too much formality can make a normal message feel stiff.

Mixing respect direction. Sonkeigo raises the other person. Kenjōgo humbles your side. AI may produce a fluent sentence but mix the direction.

Forgetting the medium. Spoken keigo, email keigo, and LINE messages do not always use the same level.

Trusting AI for high-stakes communication. Use AI to prepare, but ask a teacher or appropriate professional before sending messages that affect school, work, housing, legal, medical, or immigration matters.

When you want to check one AI keigo correction with a teacher, bring it to a Free Trial lesson with Kind Japanese over LINE.

FAQ

Can AI correct keigo accurately?

AI can often make a Japanese sentence more polite, but accurate keigo depends on relationship, speaker role, listener role, medium, and purpose. Use AI for a first draft or comparison. For real messages to teachers, managers, customers, or offices, ask a teacher to check whether the respect direction and tone fit.

What is the biggest risk of AI keigo correction?

The biggest risk is not grammar alone. It is social mismatch. AI may choose a phrase that is technically polite but too formal, too distant, or aimed in the wrong respect direction. Keigo must fit who does the action, who receives respect, and how close the relationship is.

Should I ask ChatGPT for sonkeigo and kenjōgo?

Yes, but ask it to label which part is sonkeigo and which part is kenjōgo. Then verify the answer. If you cannot explain why your action became humble or the other person’s action became honorific, you have not learned the correction yet. Bring one example to teacher review.

Can Kind Japanese review AI-generated keigo?

Kind Japanese can help you practise keigo sentences, compare polite levels, and decide whether a phrase sounds natural for a learning situation over LINE. It does not certify business, legal, immigration, medical, school, or employment documents. Use lessons for language learning and communication practice.