What is the safest Korean speech style for a beginner?

Use 해요체, the everyday polite style ending in forms such as 가요 and 먹어요, with most adults you do not know well. Use more formal 합니다 style in presentations, announcements, interviews, or highly formal service contexts. Listen to your institution, keep titles, and do not switch to 반말 without mutual agreement.

Is adding 요 enough to make Korean polite?

No. 요 is an important polite ending marker, but Korean respect can also involve the subject honorific -(으)시-, respectful titles, special verbs, humble speaker forms, and appropriate word choice. A sentence can end in 요 yet still sound odd if you address a professor by name, use 당신, or honor the wrong subject.

When can I use 반말 with a Korean friend?

Use casual speech after the relationship and preference are clear. Similar age does not automatically grant permission, and one person may continue polite speech for comfort or context. A common approach is to ask whether speaking casually is okay. If uncertain, stay with 해요체. Returning to polite speech in a formal setting can also be appropriate.

Should I call a Korean professor by their first name?

Usually no. 교수님 is the safe default for a university professor, and a surname plus 교수님 may be used when distinction is needed. Follow the professor's stated preference and campus practice. Avoid 씨 for a professor or supervisor because 씨 is generally used among peers or toward someone of similar or lower status.

Why should I avoid 당신 for ordinary 'you'?

Korean often omits the second-person pronoun or uses a title, name plus title, or role instead. 당신 has valid uses, including some intimate, literary, advertising, or confrontational contexts, but it is not a neutral replacement for English “you.” For a professor, customer, or stranger, use the appropriate title or restructure the sentence.

Korean Honorifics Explained: Navigate Politeness Levels

Korean politeness is not one switch between formal and informal. It is a system that can mark your relationship with the listener, show respect toward the subject of a sentence, choose a respectful title, and lower the speaker through humble vocabulary.

For a beginner, the safest plan is simple: use polite 해요체, address people by title, and add more layers as you understand them.

Four parts of Korean honorification

1. Speech style toward the listener

The sentence ending shows how the speaker positions the listener and the situation.

2. Subject honorification

The marker -(으)시- and some special words show respect toward the person who performs the action or is being described.

3. Forms of address

Titles such as 교수님 and 선생님 are often safer than a bare name or a direct equivalent of “you.”

4. Honorific and humble vocabulary

Some ordinary verbs and nouns have respectful or humble alternatives.

These parts can appear together, but they do different jobs.

The speech styles learners need most

Korean grammar describes several speech styles. Not all are equally useful as a beginner's default.

Style	Example	Typical use
해요체	가요, 먹어요	Everyday polite conversation
하십시오체, often called 합니다 style	갑니다, 먹습니다	Formal polite speech, presentations, announcements, interviews
해체, casual 반말	가, 먹어	Close relationships after casual speech is established
해라체	간다, 먹는다, 가라	Plain writing, self-talk, quotations, and direct commands depending on form
하오체 and 하게체	marked forms	Limited, traditional, fictional, or relationship-specific contexts

Do not reduce this table to “formal, polite, casual.” Context, relationship, age, role, setting, and the speaker's intention interact.

해요체: the safest conversational default

Use 해요체 with new classmates, shop staff, neighbors, and adults you do not know well.

가요. I go, or someone goes.
먹어요. I eat, or someone eats.
괜찮아요. It is okay.
어디예요? Where is it?
도와주세요. Please help me.

The final 요 helps mark politeness toward the listener. It does not automatically make every word choice appropriate.

합니다 style: formal polite speech

Use formal polite endings in presentations, interviews, official introductions, formal announcements, and some service interactions.

갑니다. I go.
먹습니다. I eat.
감사합니다. Thank you.
질문이 있습니다. I have a question.
어디에 있습니까? Where is it?

Using 합니다 style for every casual conversation can sound distant or stiff, but it is not grammatically wrong. Listen to how people in the setting speak.

반말: casual speech needs a relationship

반말 is a broad everyday term for non-honorific or casual speech. 해체 forms are common in close relationships:

가. Go, or I am going.
먹어. Eat, or I eat.
괜찮아. It is okay.

Do not copy 반말 from dramas and use it with strangers, staff, or professors. Similar age does not automatically make casual speech appropriate. Friends may explicitly agree to speak casually, often described as 말을 놓다.

Subject honorification with -(으)시-

Add -(으)시- to honor the grammatical subject, not the listener.

선생님이 오세요. The teacher is coming.
교수님이 말씀하세요. The professor is speaking.
어머니가 주무세요. Mother is sleeping.

The ending can also be polite toward the listener. In 오세요, 시 honors the subject, while 요 makes the utterance polite to the listener.

Use 으시 after many consonant-ending stems and 시 after vowel-ending or ㄹ-ending stems, with regular conjugation changes. Learn forms as complete examples.

Common honorific vocabulary

Ordinary form	Honorific form	Meaning
있다	계시다	to be, or stay, for a respected person
먹다	드시다, 잡수시다	to eat
자다	주무시다	to sleep
말하다	말씀하시다	to speak
이름	성함	name
나이	연세	age
집	댁	home

These words are not interchangeable in every sentence. For example, 계시다 is used for the presence of a respected person, while possession and existence patterns require context-sensitive choices.

Humble forms lower the speaker

Humble language presents the speaker or the speaker's action modestly in relation to someone respected.

Ordinary form	Humble or deferential form	Meaning
나	저	I
내	제	my
주다	드리다	to give to someone respected
묻다	여쭙다, 여쭤보다	to ask someone respected
보다, 만나다	뵙다	to see or meet someone respected
말하다	말씀드리다	to tell or speak to someone respected

Examples:

제가 말씀드릴게요. I will tell you.
교수님께 여쭤봤어요. I asked the professor.
내일 뵙겠습니다. I will see you tomorrow.

Do not use an honorific verb to elevate your own ordinary action. The relationship between participants determines the form.

Titles and names

교수님

Use 교수님 for a university professor. If needed, add the surname: 김 교수님.

선생님

선생님 can address a teacher and is also used respectfully for some professionals or people providing expertise. Context determines whether it is natural.

Workplace titles

팀장님, 사장님, 부장님, and similar title plus 님 forms are common when the title applies. Learn the actual organization, because English job labels do not map perfectly.

씨

씨 can follow a full name or given name in peer-like contexts. It is generally not the respectful choice for your professor or superior, and a surname plus 씨 can sound awkward or impolite.

님

-님 is an honorific suffix used with certain roles and titles. It also appears after names in online, customer-service, or organizational contexts. Do not attach it mechanically to every noun.

Avoid a neutral-looking “you”

Korean often omits the subject or object when context makes it clear. It also uses a person's title or name plus title.

당신 is not a neutral all-purpose equivalent of English “you.” It has legitimate uses, but in ordinary conversation it can sound confrontational, intimate, literary, or impersonal depending on context.

Instead of translating word for word, say:

교수님은 어떻게 생각하세요? Professor, what do you think?
어떻게 생각하세요? What do you think?
민지 씨는요? What about Minji?

The particle 께 and respectful requests

께 can mark a respected recipient, where 에게 or 한테 might appear in less deferential contexts.

교수님께 이메일을 보냈어요. I sent an email to the professor.
선생님께 여쭤봤어요. I asked the teacher.

For a polite request:

다시 말씀해 주세요. Please say it again.
천천히 말씀해 주세요. Please speak slowly.
확인해 주세요. Please check it.

주세요 is useful, but a command can still be inappropriate if the request itself is unreasonable or the tone is sharp.

Common mistakes

Honoring an object

Learners and native speakers sometimes overextend -(으)시- to an object or product in service language. The honorific marker should normally respect a person who is the subject, not coffee, a price, or a receipt.

Mixing styles accidentally

A sentence can contain polite vocabulary but end casually, or switch between 해요체 and 합니다 style. Mixed style is sometimes natural in real discourse, but beginners should keep one base style within a formal task.

Calling a professor by name alone

Use 교수님 or the preferred institutional title unless invited to do otherwise.

Assuming older always means one-way informality

Age matters, but role, setting, familiarity, and individual preference also matter. Polite speech can be mutual, especially among adults who are not close.

Translating English pronouns directly

Omit “you” or use a title. Do not insert 당신 into every question.

A safe decision process

When you meet someone:

Start with 해요체.
Use their role or title.
Listen to how they introduce themselves.
Follow the local institutional norm.
Switch to casual speech only when the relationship makes it clear.
If you make a mistake, apologize briefly and use the corrected form.

Honorific skill develops through patterns, not a single hierarchy chart.

Practice these forms with the 50 essential Korean phrases and the complete Korean learning plan. For guided Korean study in South Korea, contact Asia Pathway.

Korean Honorifics Explained: Navigate Politeness Levels