해요체 vs 합니다체: When to Use Each Korean Speech Level

You've learned to say 감사합니다 (gamsahamnida), and then someone tells you 고마워요 (gomawoyo) is fine too. Both are polite, so what's the difference? The answer is Korean speech levels, and the two you'll use most as an adult learner are 해요체 (haeyo-che) and 합니다체 (hamnida-che). This guide explains what each one is, when Koreans actually use it, and how the verb endings change.

Korean speech levels in one minute

Korean marks politeness in the ending of the verb, at the very end of the sentence. Grammar books traditionally list six or seven speech levels, but in everyday modern Korean you only need four:

The key point for learners: both 해요체 and 합니다체 are 존댓말 (jondaenmal, polite speech). The difference between them is not "polite vs rude". It's closer to "polite vs formal", like the difference between "Thanks so much" and "Thank you very much for your time" in English. Korean grammar calls 합니다체 격식체 (formal) and 해요체 비격식체 (informal), but both show respect.

What is 해요체 (haeyo-che)?

해요체 is the default polite style of spoken Korean. It's what you'll hear between coworkers, from shop staff, between adults who've just met, and in most K-dramas when characters aren't close. It sounds friendly and respectful at the same time.

Its big convenience: the same ending, -아요/-어요, works for statements, questions, requests and suggestions. Only your intonation changes. 가요 can mean "I'm going", "Are you going?", "Go" or "Let's go", depending on how you say it and the context.

What is 합니다체 (hamnida-che)?

합니다체 is the formal polite style. It sounds deliberate, official and a little distant, the voice of announcements, speeches and the evening news. Unlike 해요체, it has a separate ending for each sentence type: -ㅂ니다/-습니다 for statements, -ㅂ니까/-습니까 for questions, and -(으)십시오 for polite commands.

You already know some 합니다체, because many fixed expressions live there: 감사합니다 (thank you), 죄송합니다 (I'm sorry), 처음 뵙겠습니다 (nice to meet you, very formal), 수고하셨습니다 (thanks for your hard work).

What does -합니다 (hamnida) mean?

합니다 (hamnida) is the verb 하다 (hada, "to do") with the formal polite ending -ㅂ니다. By itself it simply says "(I) do", formally. You'll rarely say it alone. You hear it at the end of longer words and phrases, which is why so many learners look it up right after learning 감사합니다.

It's spelled 합니다 but pronounced ham-ni-da: a ㅂ before ㄴ turns into an m sound. That's why it's romanized hamnida, and why 감사합니다 is written gamsahamnida (or kamsahamnida in older romanization).

The ending has two shapes: -ㅂ니다 after a vowel (하 becomes 합니다, 이 becomes 입니다, imnida) and -습니다 after a consonant (먹 becomes 먹습니다, seumnida, often spelled sumnida). In questions they become -ㅂ니까 and -습니까 (hamnikka, seumnikka).

합니다 vs 해요

Both are 하다 in polite speech, and both are respectful. 합니다 is the formal form, for announcements, meetings and first introductions. 해요 is the everyday polite form. 감사합니다 and 감사해요 both say "thank you", and 공부합니다 and 공부해요 both say "I study". The rest of this guide explains when each one fits.

When to use each

There's no single rule, but these patterns hold in most situations.

• At work. Day-to-day conversation with colleagues, and often with your manager, is usually 해요체, with the honorific -시- for seniors (부장님, 회의 가세요? "Are you going to the meeting, sir?"). Switch to 합니다체 for meetings, reports, introducing yourself, senior executives and formal emails. Many people open and close with 합니다체 and talk in 해요체 in between.
• Strangers. 해요체 is the safe default for asking directions or chatting with someone you've just met. 합니다체 isn't wrong, but in casual moments it can sound stiff.
• Elders. Use 해요체 plus honorific verbs and -시-: 드세요 rather than 먹어요 for "eat", 주무세요 rather than 자요 for "sleep". In formal settings, such as greeting a friend's grandparents for the first time, 합니다체 greetings like 안녕하십니까 show extra care.
• Service staff. Staff speak to customers in a mix of 합니다체 and 해요체 (어서 오십시오, 주문하시겠어요?). As a customer, 해요체 is perfect: 이거 주세요 ("This one, please").
• Presentations and speeches. 합니다체, almost without exception. Q&A afterwards often relaxes into 해요체.
• News. Broadcast anchors read the news in 합니다체 (…했습니다).
• Military. Traditionally soldiers speak in 합니다체, sometimes nicknamed 다나까 speech after the endings -다 and -까. Rules have relaxed in recent years for informal situations, but formal reporting still uses it.
• Writing. Formal emails, cover letters, notices and signs use 합니다체. Text messages to acquaintances use 해요체. Newspaper articles, essays and books mostly use neither: they use the plain style (한다, 했다).

How the verb endings change

Start from the verb stem (the dictionary form minus 다). For 합니다체, add -ㅂ니다 after a vowel and -습니다 after a consonant. For 해요체, add -아요 if the last vowel of the stem is ㅏ or ㅗ, otherwise -어요. Vowels often merge (가 + 아요 becomes 가요), and 하다 becomes 해요.

Here's how common verbs conjugate:

Example sentences: 해요체 vs 합니다체

Romanization follows the Revised Romanization of Korean and reflects pronunciation.

Notice two things. The honorific -시- (식사하셨어요, 있으세요) appears in both columns, because honoring the person you're talking about and choosing a formality level are separate choices. And some 해요체 endings have no direct 합니다체 version. -(으)ㄹ게요 ("I'll…") becomes -겠습니다 in formal speech.

Common mistakes

• Thinking 해요체 is casual. It isn't. It's fully polite and is what most Koreans use with people they respect every day. Casual speech is 반말, which drops the 요.
• Using 합니다체 for everything. It's never rude, but using it with a café server or a new friend your age can sound robotic, like speaking in a press release.
• Confusing formality with honorifics. The honorific -시- raises the person you're talking about, and it combines with either style: 사장님이 가세요 / 사장님이 가십니다 ("The CEO is going"). 사장님이 갑니다 is formal but leaves out the honorific the CEO deserves. Never use -시- about yourself.
• Saying 갑시다 to your boss. -(으)ㅂ시다 sounds like a leader addressing equals or juniors. To a senior, combine the honorific -시- with -지요 instead. 같이 가시지요 (gachi gasijiyo) is the full form and sounds slightly more formal and deferential. 같이 가시죠 (gachi gasijyo) is its spoken contraction, the version you'll hear most around the office. Both mean "Shall we go together?" Strictly, -지요 is a 해요체 ending, but with -시- it's the standard way to propose something to a senior, even in formal settings.
• Breaking ㄹ-stem verbs. It's 압니다, 삽니다 and 만듭니다, not 알습니다, 살습니다 or 만들습니다.
• Misspelling the copula. It's 학생이에요 but 의사예요, and the negative is always 아니에요, never 아니예요.

A short note on 반말

반말 (banmal) is casual speech. For most verbs, drop the 요 from 해요체 and you have it: 가, 먹어. The copula changes slightly: 학생이에요 becomes 학생이야. Koreans use it with close friends, younger siblings, children, and peers once both people agree to it, often after someone asks 말 놓을까요? ("Shall we drop the formalities?"). Using 반말 uninvited with a stranger, a colleague or anyone older can come across as rude, so wait to be invited.

FAQ

Is 해요체 rude or too casual?

No. 해요체 is polite speech and is the most common way adults talk to people they don't know well. It's appropriate with strangers, colleagues, shop staff and elders, especially when you add the honorific -시- for people senior to you.

Should I use 합니다체 with my boss?

In meetings, reports, formal emails and first introductions, yes. In everyday conversation, many Korean workplaces use 해요체 with honorifics toward managers. Follow what your colleagues do, and when unsure, start in 합니다체 and relax into 해요체.

Can I mix 해요체 and 합니다체 in one conversation?

Yes, and native speakers do it constantly. A typical pattern is a formal greeting such as 안녕하십니까, a conversation in 해요체, and a formal close such as 감사합니다. Mixing the two polite styles is natural. Slipping into 반말 is a different matter.

What's the difference between 합니다체 and 하십시오체?

They're the same speech level. 하십시오체 is the traditional grammar name, taken from its command form, and 합니다체 is the name many textbooks use, taken from its statement form.

Which should I learn first as a beginner?

Most learners get the most use out of 해요체 first, because one ending covers statements, questions and requests. Learn the common 합니다체 set phrases early, though, such as 감사합니다, 죄송합니다 and 안녕하십니까, and add the full 합니다체 endings once 해요체 feels comfortable.

What does hamnida mean in Korean?

합니다 (hamnida) is the verb 하다 (to do) with the formal polite ending -ㅂ니다. It isn't a word you use on its own: you hear it at the end of formal phrases like 감사합니다 (gamsahamnida, thank you). The same ending appears as 입니다 (imnida, "am" or "is") and -습니다 (seumnida, often spelled sumnida).