Learners often treat ます as "the polite form" and assume it covers every situation that calls for manners. It does not — and the gap it leaves is the source of half of all keigo mistakes. The crucial fact is that です/ます and 謙譲語 answer two different questions. ます asks "am I being polite to my listener?" 謙譲語 asks "am I lowering myself enough for the social gap?" You can be fully polite (ます) and still fail to be humble (謙譲語) — and to a customer that reads as cold. This page is the decision reference: it keys the register to who you are speaking to and in what setting, not to a vague wish to "sound polite."
The one insight: politeness and humility are different axes
- です/ます (丁寧語) is politeness aimed at the listener. It is neutral — it raises no one and lowers no one. 行きます is exactly as deferential as 食べます: none, beyond basic courtesy.
- 謙譲語 lowers you, to open a gap beneath the person you are dealing with. 伺います, 申します, いたします.
- 尊敬語 raises them. いらっしゃいます, おっしゃいます, なさいます.
So the real question is never "polite or not." です/ます is your floor with anyone outside your inner circle. The question is whether the situation also demands that you mark a status gap — and that is decided by the relationship and the setting, covered in depth on teineigo and uchi/soto.
The decision table
Read down the left column to find your audience; the two right columns give the register for their action and your action.
| Audience / setting | Their action | Your action |
|---|---|---|
| Friends, family — your inner circle (casual) | plain (行く, 言う) | plain (行く, 言う) |
| Colleagues, acquaintances, strangers — no real gap (neutral polite) | 行きます, 言います | 行きます, 言います |
| Customers, clients, superiors; service & business (deferential) | いらっしゃいます, おっしゃいます (尊敬語) | 伺います/参ります, 申します (謙譲語) |
Model verbs across the three tiers:
| Plain | Neutral polite (ます) | Humble, your action (謙譲語) | Honorific, their action (尊敬語) |
|---|---|---|---|
| 言う | 言います | 申します | おっしゃいます |
| 行く/来る | 行きます/来ます | 伺います/参ります | いらっしゃいます |
| する | します | いたします | なさいます |
| いる | います | おります | いらっしゃいます |
| 食べる | 食べます | いただきます | 召し上がります |
Readings: 申します(もうします, mōshimasu), 伺います(うかがいます, ukagaimasu), 参ります(まいります, mairimasu), おっしゃいます (osshaimasu), いらっしゃいます (irasshaimasu), いたします (itashimasu), なさいます (nasaimasu), おります (orimasu), いただきます (itadakimasu), 召し上がります(めしあがります, meshiagarimasu).
The most useful drill: one sentence, three audiences
The clearest way to feel the ladder is to hold the meaning fixed and move only the register. "I'll come at three":
三時に行くね。
sanji ni iku ne
I'll come by at three. (to a friend)
三時に行きます。
sanji ni ikimasu
I'll come at three. (to a colleague)
では、三時に伺います。
dewa, sanji ni ukagaimasu
Then I'll call on you at three. (to a client)
All three say the same thing. The friend gets plain 行く; the colleague gets neutral 行きます; the client gets humble 伺います, because the setting — a business call on someone senior — is what obliges you to mark the gap. ます was not "wrong" for the client; it was merely not humble, and the relationship demanded humility.
The same ladder for a self-introduction, "I'm Tanaka":
田中です、よろしく。
tanaka desu, yoroshiku
I'm Tanaka — nice to meet you. (to a classmate)
本日司会を務めます、田中と申します。
honjitsu shikai o tsutomemasu, tanaka to mōshimasu
I'm Tanaka, your host for today. (opening a formal event)
The two failure modes
Because the choice is keyed to the gap, you can miss in either direction.
Under-humbling — using neutral ます where the gap demands 謙譲語. A service worker who tells a customer 「後で行きます」is grammatically polite but socially under-dressed; the counter, the uniform, the customer relationship all call for 伺います.
担当者がすぐに伺いますので、少々お待ちください。
tantōsha ga sugu ni ukagaimasu node, shōshō o-machi kudasai
Someone will be right with you — please wait just a moment.
Over-humbling — using 謙譲語 with a peer, where the gap does not exist. 申します to a friend, 伺います to a classmate: these sound servile or sarcastic, as if you were bowing to someone you drink with. The register itself asserts a gap, so using it where there is none is not "extra polite" — it is odd. This over-shooting is common enough to have its own page, over-humbling the listener.
明日そっちに行くから、待ってて。
ashita socchi ni iku kara, mattete
I'll come over to your place tomorrow, so wait for me. (to a friend)
Here plain 行く is correct; ×そっちに伺う to a friend would be comically stiff.
A decision flowchart
- Is this my inner circle (close friend, family, casual)? → plain. Stop.
- Otherwise, is there a real status gap, or is this a service / business / formal setting?
- No (peer, colleague, ordinary stranger) → です/ます, neutral. Stop.
- Yes (customer, client, superior; you are on duty) → keigo: 尊敬語 for their action, 謙譲語 for your action, on top of ます.
The whole trick is that step 2 keys off the relationship and setting, never off how polite you feel like being. See the 謙譲語I vs II reference once you have decided humility is required, to pick the right humble verb.
Common mistakes
1. Over-humbling a peer. 謙譲語 asserts a gap; with a friend there is none, so it sounds servile.
❌ 私、田中と申します。
Over-humbled if said to a friend — 申します asserts a formal gap; to a peer it sounds absurdly stiff.
✅ 田中だよ、よろしく。
tanaka da yo, yoroshiku
I'm Tanaka, nice to meet you. (to a friend or peer)
2. Under-humbling a client — believing ます is deferential. ます is neutral, not humble.
❌ 明後日、そちらに行きます。
Under-marked to a client — polite but not humble; a business call needs 伺います.
✅ 明後日、そちらに伺います。
asatte, sochira ni ukagaimasu
I'll call on you the day after tomorrow. (to a client)
3. Humbling the superior's action. The gap decides which register goes on whose action: yours goes down, theirs goes up.
❌ 部長は三時にこちらに参ります。
Wrong direction — 参る lowers the subject, but the department head must be raised: いらっしゃいます.
✅ 部長は三時にこちらにいらっしゃいます。
buchō wa sanji ni kochira ni irasshaimasu
The department head will come here at three.
4. Assuming ます alone covers a visit to a superior. Going to a superior's place is your action toward an honored person → 謙譲語.
❌ 来週、社長のお宅に行きます。
Polite but not humble — visiting the president's home calls for 伺います.
✅ 来週、社長のお宅に伺います。
raishū, shachō no o-taku ni ukagaimasu
I'll visit the president's home next week.
Key takeaways
- です/ます is neutral politeness toward the listener — it raises and lowers no one. It is your floor, not your ceiling.
- 謙譲語 lowers you; 尊敬語 raises them. These answer a different question than ます: is the status gap marked?
- Climb to keigo when there is a real gap or a service/business setting, not when you simply want to sound nice.
- Under-humbling (行きます to a client) reads as cold; over-humbling (申します to a friend) reads as servile. Miss in either direction and it grates.
- Choose the register by audience and setting first, then put your action in 謙譲語 and their action in 尊敬語.
Now practice Japanese
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Start learning Japanese→Related Topics
- 謙譲語I vs II (丁重語): ReferenceN2 — A reference table splitting the two kinds of humble verb — 謙譲語I (伺う・申し上げる), which elevates a specific person the action reaches, versus 謙譲語II/丁重語 (参る・申す・おる), which merely dignifies your own act toward the listener.
- お〜する/いたす: Regular Humble FormationN3 — The single-shape reference for the productive humble: お + ます-stem + する/いたす across every verb class — with the ご + Sino variant, the full paradigm, and the one condition (an honored recipient) that the pattern needs to make sense.
- Top 20 Verbs in Three Registers: TableN3 — A fast lookup table giving the twenty highest-frequency verbs in plain, 尊敬語 (honorific), and 謙譲語 (humble) form — with the suppletive forms that override the お〜になる/お〜する machinery flagged.
- 丁寧語 Overview: です・ます PolitenessN4 — 丁寧語 is the one keigo axis aimed at the listener — the です・ます courtesy layer that makes speech acceptable to someone you don't treat casually, independent of any respect you show the people you describe.
- Over-Humbling: Never Lower the ListenerN2 — Humble verbs (参る, おる, 拝見する, いただく) are a badge you pin on yourself — aim one at the person you are addressing and you insult them to their face; swap to the honorific twin.
- うち/そと: In-Group and Out-GroupN3 — The 内/外 boundary silently decides which keigo axis fires — you elevate out-group people and humble your own in-group, even when that in-group member is your own boss.