Korean Polite Speech vs Casual Speech

The Three Speech Styles Beginners Need First

Everyday polite speech is called 해요체 (haeyoche). Its sentences commonly end in -아요/-어요 or -이에요/-예요: 가요, 먹어요, 학생이에요. It is respectful without sounding ceremonial, so it covers most ordinary conversations with people who are not intimate.

Formal polite speech is 합쇼체 (hapsyoche), recognized by endings such as -습니다/-ㅂ니다 and -습니까/-ㅂ니까: 갑니다, 먹습니다, 학생입니까? It suits presentations, announcements, interviews, military or institutional settings, and especially formal customer-facing language. Casual 해체 (haeche) removes the polite -요 and uses forms such as 가, 먹어, and 학생이야.

• 해요체: 가요 — polite and conversational
• 합쇼체: 갑니다 — polite and formal
• 해체/반말: 가 — non-polite and intimate

Polite Does Not Mean Formal

English explanations often pair formal with polite and informal with casual, but Korean has two separate questions: Is the speaker honoring the listener, and how formal is the setting? 해요체 is polite even though it is conversational. 합쇼체 is both polite and more formal. This is why 안녕하세요 is normally polite speech, not casual speech, despite being an everyday greeting.

존댓말 (jondaetmal) is the broad everyday label for speech that respects the listener; it includes both 해요체 and 합쇼체. 반말 is the broad label for non-polite speech. A beginner does not need to produce all traditional Korean speech levels, but should recognize that a neat two-column formal/informal translation hides useful distinctions.

When to Start with Polite Speech

Use 존댓말 when meeting an adult for the first time, speaking to a teacher or supervisor, addressing a customer, or talking with an adult whose relationship to you is uncertain. Similar age does not automatically authorize 반말. Two university students may begin with -요 and switch later after becoming comfortable.

Age matters, but it is only one factor. Professional role, familiarity, setting, and the other person's preference also matter. A younger employee may use polite speech to an older manager, while the manager may still choose polite speech to create a respectful workplace. In a shop, both customer and employee can appropriately use -요 or formal polite language.

• First meeting with an adult: start with -요
• Teacher, supervisor, or customer: use polite speech
• Public presentation or formal interview: consider -습니다
• Close peer after mutual agreement: 반말 may be natural

When Casual Speech Is Natural

반말 is normal between close friends who use it with each other, among many siblings and family members, when an adult speaks to a young child, and in private self-talk. It can signal warmth and closeness; it is not inherently bad Korean. The problem is using it where the listener expects respect or distance.

Do not copy a drama character's casual line into a new real-life relationship without checking the scene. Characters may be childhood friends, relatives, enemies, or speaking downward to show power. 반말 can sound affectionate, playful, blunt, commanding, or hostile depending on voice and context.

How to Switch to 반말 Naturally

A switch is often discussed rather than silently assumed. You can ask 우리 말 놓을까요? (Uri mal noeulkkayo?), Shall we speak casually? Another common question is 반말해도 돼요? (Banmalhaedo dwaeyo?), May I use casual speech? If the other person says 네, 편하게 말하세요, they are inviting you to speak comfortably.

Permission may be one-way. An older person saying 말 편하게 하세요 can invite a younger person to relax, but the exact response depends on relationship and context. When unsure, keep -요. There is no penalty for waiting, and polite speech can remain warm rather than distant.

• 우리 말 놓을까요? — Shall we speak casually?
• 반말해도 돼요? — May I use casual speech?
• 네, 편하게 말하세요. — Yes, please speak comfortably.
• 저는 존댓말이 더 편해요. — I am more comfortable with polite speech.

Change the Ending, Then Check the Whole Sentence

For many verbs, the everyday polite and casual forms differ mainly by -요: 가요 becomes 가, 먹어요 becomes 먹어, and 좋아해요 becomes 좋아해. The copula changes as a set: 학생이에요 becomes 학생이야 after a consonant, while 친구예요 becomes 친구야 after a vowel. Formal polite forms require their own endings: 갑니다, 먹습니다, 학생입니다.

Questions can look identical to statements in 해요체 and 해체, with intonation doing work: 가요? and 가? Formal polite questions use -습니까/-ㅂ니까, as in 갑니까? Commands require more care. 앉아 can be too direct outside a close relationship; 앉으세요 is a common polite request, while 앉아 주세요 explicitly asks someone to sit.

• 먹습니다 → 먹어요 → 먹어
• 좋습니다 → 좋아요 → 좋아
• 학생입니다 → 학생이에요 → 학생이야
• 갑니까? → 가요? → 가?

Speech Level and Subject Honorifics Are Different

Sentence endings show the speaker's stance toward the listener. The honorific marker -(으)시- shows respect toward the sentence's subject. These systems can appear together but are not the same. 선생님이 오세요 is polite to the listener and honors the teacher who is coming.

You can honor the subject while speaking casually to a close friend: 선생님 오셨어? means Did the teacher come? The ending is casual toward the friend, while -시- honors the teacher. Conversely, 동생이 와요 is polite toward the listener but does not honor the younger sibling as the subject. This distinction prevents the common mistake of treating every -요 sentence as a subject honorific.

A Practical Decision Check

Before speaking, ask three questions. First, what is my relationship with the listener? Second, is the setting ordinary or institutionally formal? Third, have we clearly established casual speech? If the last answer is no, choose -요. Move to -습니다 when the role or occasion calls for a formal public tone.

Keep one level reasonably consistent within a short interaction. Native speakers sometimes mix -요 and -습니다 naturally, especially in service or workplace speech, but an unexplained jump from -요 to 반말 can feel abrupt. Beginners sound more reliable by holding the listener relationship steady.

Mini Practice

Choose or produce the best form. 1) You meet an adult classmate for the first time: 가 or 가요? 2) Change 먹어요 to casual speech. 3) Change 학생이에요 to formal polite speech. 4) Ask a friend politely, Shall we speak casually? 5) Your close friend asks whether your respected teacher arrived; complete 선생님 __? using casual listener speech and a subject honorific. 6) Explain why a person your age is not automatically a 반말 partner.

Answer Key

1) 가요 is the safe choice because the relationship is new. 2) 먹어. 3) 학생입니다. 4) 우리 말 놓을까요? (Uri mal noeulkkayo?) 5) 선생님 오셨어? (Seonsaengnim osyeosseo?) The casual ending addresses a close friend, while -시- honors the teacher. 6) Speech level also depends on familiarity, setting, role, preference, and mutual agreement; begin with 존댓말 until the relationship is clear.

Should Korean beginners always use -요?

Use -요 as your everyday default with adults when the relationship is unclear. You will also need -습니다 for some formal settings and 반말 for established close relationships, but -요 is the safest starting point.

Is 존댓말 the same as formal Korean?

Not exactly. 존댓말 includes conversational polite 해요체 as well as formal polite 합쇼체. Politeness toward the listener and formality of the setting are related but separate ideas.

Can I use 반말 with someone the same age?

Possibly, but not automatically. Adults of the same age often begin with 존댓말 and move to 반말 after the relationship becomes comfortable or they agree to speak casually.

How do I ask to speak casually in Korean?

우리 말 놓을까요? means Shall we speak casually? 반말해도 돼요? means May I use casual speech? Keep using polite speech unless the response clearly supports a switch.

What is the difference between 해요 and 합니다?

Both are polite. 해요 is conversational and common in daily interaction; 합니다 is more formal and common in presentations, announcements, interviews, and institutional contexts.

Does removing -요 always make a sentence casual?

Often, but not as a universal mechanical rule. Copula and irregular forms need attention, and requests or commands can change social force when -요 is removed.

Are speech levels and honorifics the same thing?

No. Sentence endings primarily manage the listener relationship, while forms such as -(으)시- honor the subject. A sentence can use casual speech to a friend while honoring the teacher being discussed.