Conversational Korean • Presentational Communication (Speaking & Writing)

Writing Requests & Explanations — I can write a short request or explanation to handle a common need (order, appointment, service issue).

Learn to write practical Korean messages for ordering, booking appointments, and resolving service issues.

Conversational Korean emblem with language characters, speech, and audio waves.
Inside this lesson 10 sections 5 questions 9 figures

SECTION 1

Historical Context & Motivation

Korean writing has a uniquely practical history. King Sejong the Great created 한글 (Hangeul) in 1443 specifically so that common people—not just scholars—could read and write in everyday life. From the very beginning, the Korean writing system was designed to be accessible and functional. Today, writing short requests and explanations in Korean remains one of the most practical skills you can develop, whether you are texting a Korean friend, ordering food through an app, or emailing a customer service team in Seoul.

As Korea modernized through the 20th century, standard letter-writing conventions evolved into shorter digital formats. The rise of KakaoTalk, Naver, and Korean e-commerce platforms like Coupang created a culture where people routinely write brief, polite messages to make requests, confirm appointments, and resolve problems. Understanding these conventions is essential for anyone who wants to communicate naturally in Korean.

1443 • Creation of Hangeul

King Sejong promulgates Hangeul to make literacy accessible to all Koreans, enabling practical everyday writing.

1896 • First Korean Newspaper

The 독립신문 (Dongnip Sinmun) is published entirely in Hangeul, establishing conventions for public Korean prose.

1988 • Standardized Spelling Rules

South Korea finalizes modern 한글 맞춤법 (spelling rules) that govern formal and informal writing today.

2010s • Digital Communication Boom

KakaoTalk and mobile platforms make short written requests—orders, reservations, complaints—a daily norm for all Korean speakers.

The core question this lesson addresses is: how do you structure a short, polite Korean message that clearly states what you need? Whether you are placing an order, scheduling a meeting, or explaining a problem with a product, you need to know the right sentence patterns, politeness levels, and organizational conventions that Korean readers expect.

SECTION 2

Core Principles of Korean Requests & Explanations

Before you start writing, you need to understand the foundational ideas that shape how Korean speakers make requests and give explanations. Korean is a context-rich language, meaning the level of formality, the relationship between writer and reader, and the situation all influence your word choices. The following principles will guide every message you write.

1

Speech Level (존댓말 vs. 반말)

Korean has distinct politeness levels. For written requests to businesses or strangers, always use 존댓말 (formal/polite speech). The most common written ending is -습니다 / -ㅂ니다 (formal) or -아요 / -어요 (polite).
2

Verb-Final Word Order

Korean sentences follow Subject–Object–Verb (SOV) order. Your request or main point always comes at the end of the sentence, so plan your sentence around the final verb or adjective.
3

Key Request Grammar

Use -아/어 주세요 (please do ~ for me) for polite requests, -고 싶습니다 (I would like to ~) for expressing desires, and -(으)ㄹ 수 있을까요? (would it be possible to ~?) for softer requests.
4

Opening & Closing Conventions

Start with a greeting like 안녕하세요 and close with a polite sign-off such as 감사합니다 (thank you) or 잘 부탁드립니다 (I appreciate your help).
5

Be Concise & Specific

Korean written requests are typically short and to the point. State who you are (if relevant), what you need, and any important details like dates or quantities—then close politely.
✦

KEY TAKEAWAY

Think of Korean politeness levels like a dress code. When you write to a business or someone you do not know, you wear your 'formal outfit'—존댓말. Just as you would not show up to a job interview in pajamas, you would not send a customer service email in 반말. Matching the right level of formality shows respect and makes your request far more likely to succeed.

SECTION 3

Visual Explanation — Anatomy of a Korean Request Message

Anatomy of a Korean Request Message① GREETING (인사)안녕하세요.→ Hello. (Sets polite tone)② CONTEXT / SELF-INTRODUCTION (배경 설명)지난주에 주문한 고객입니다.→ I am a customer who ordered last week.③ MAIN REQUEST / EXPLANATION (요청 / 설명)교환해 주실 수 있을까요?→ Would it be possible to exchange it?④ DETAILS (세부 사항)사이즈는 L로 부탁드립니다.→ Size L, please.⑤ POLITE CLOSING (마무리 인사)감사합니다. 잘 부탁드립니다.→ Thank you. I appreciate your help.
This diagram shows the five-part structure of a typical Korean request message. Notice how each section serves a clear purpose: the greeting sets the polite tone, the context establishes who you are, the main request states what you need, details specify important information, and the closing ends with gratitude.

Not every message requires all five parts. A quick order at a café might only need parts ③ and ⑤, while a formal complaint to a company should include all five. The key is to recognize what the situation demands and adjust accordingly. As you practice, you will develop an intuition for which parts to include and how much detail to provide.

SECTION 4

How It Works — Essential Grammar Patterns

Now let's look at the specific grammar patterns you will use most often when writing requests and explanations. These patterns are your building blocks—once you master them, you can combine them to handle virtually any common situation.

Pattern 1: Polite Request with -아/어 주세요

POLITE REQUEST

Verbstem+−아/어주세요Verb stem + -아/어 주세요

Meaning: "Please do [verb] for me." Use -아 주세요 after stems with ㅏ or ㅗ vowels, and -어 주세요 after all other vowels. Example: 보내다 → 보내 주세요 (please send).

Pattern 2: Desire with -고 싶습니다

EXPRESSING DESIRE

Verbstem+−고싶습니다Verb stem + -고 싶습니다

Meaning: "I would like to [verb]." This is formal and polite. Example: 예약하다 → 예약하고 싶습니다 (I would like to make a reservation).

Pattern 3: Soft Request with -(으)ㄹ 수 있을까요?

SOFT / INDIRECT REQUEST

Verbstem+−(으)ㄹ수있을까요?Verb stem + -(으)ㄹ 수 있을까요?

Meaning: "Would it be possible to [verb]?" This is the most polite way to ask. Use -ㄹ 수 있을까요? after vowel-ending stems and -을 수 있을까요? after consonant-ending stems. Example: 변경하다 → 변경할 수 있을까요? (Would it be possible to change it?)

Pattern 4: Explaining a Reason with -아/어서 or -(으)ㄴ/는데

GIVING A REASON

Reasonclause+−아/어서/−(으)ㄴ/는데+RequestclauseReason clause + -아/어서 / -(으)ㄴ/는데 + Request clause

Use -아/어서 for straightforward cause-and-effect ("because..."), and -(으)ㄴ/는데 for background context ("given that..."). Example: 사이즈가 안 맞아서 교환하고 싶습니다 (Because the size doesn't fit, I'd like to exchange it).

💡

TIP: Choosing Between Patterns

Use -아/어 주세요 for everyday requests (ordering food, asking for help). Use -고 싶습니다 when stating what you want (reservations, appointments). Use -(으)ㄹ 수 있을까요? when you want to be extra polite or when asking for something that might be difficult (complaints, special requests).

SECTION 5

Detailed Breakdown — Three Common Scenarios

Let's examine three real-world scenarios where you would write a short Korean message. Each scenario shows how the five-part structure and grammar patterns come together in practice.

Three Common Scenarios for Korean Requests🛒 ORDER(주문)안녕하세요.아메리카노 두 잔주문하고 싶습니다.아이스로 부탁드립니다.감사합니다.Hello.I would like to ordertwo Americanos.Iced, please.Thank you.KEY: -고 싶습니다📅 APPOINTMENT(예약)안녕하세요.3월 15일 오후 2시에예약할 수 있을까요?2명입니다.잘 부탁드립니다.Hello.Would it be possible tomake a reservation forMarch 15, 2 PM?For 2 people.I appreciate your help.KEY: -(으)ㄹ 수 있을까요?⚠️ SERVICE ISSUE(서비스 문제)안녕하세요.어제 받은 상품에문제가 있어서연락드립니다.교환해 주실 수있을까요?감사합니다.Hello. I'm contacting youbecause there is a problemwith the product I receivedyesterday. Could youexchange it? Thank you.KEY: -아/어서 + 주실 수 있을까요?
This diagram compares three common scenarios side by side. The order uses -고 싶습니다 to state a desire, the appointment uses -(으)ㄹ 수 있을까요? as a soft request, and the service issue combines a reason clause with -아/어서 and a polite request.
ScenarioKey VocabularyPrimary Grammar
Order (주문)주문하다 (to order), 부탁드리다 (to request), 개/잔/인분 (counters)-고 싶습니다, -아/어 주세요
Appointment (예약)예약하다 (to reserve), 변경하다 (to change), 취소하다 (to cancel)-(으)ㄹ 수 있을까요?, -고 싶습니다
Service Issue (서비스 문제)교환하다 (to exchange), 환불하다 (to refund), 문제 (problem), 고장 (malfunction)-아/어서, -(으)ㄴ/는데, -아/어 주세요

Key vocabulary and grammar patterns by scenario

SECTION 6

Worked Example — Writing a Service Complaint Message

Let's walk through writing a complete message step by step. Imagine you ordered a pair of shoes online from a Korean store, but you received the wrong size. You want to ask for an exchange.

Writing a Product Exchange Request

  1. 1

    Step 1 — Start with a Greeting

    Open with a standard polite greeting. In written Korean, 안녕하세요 is almost always appropriate. You can also add a period after it for a slightly more formal feel.
    안녕하세요.
  2. 2

    Step 2 — Provide Context (Who You Are and What Happened)

    Use the connective ending -(으)ㄴ/는데 to set up background information. State when you ordered and what the problem is. This gives the reader context before you make your request.
    지난 월요일에 신발을 주문했는데, 사이즈가 잘못 왔습니다. (I ordered shoes last Monday, but the wrong size arrived.)
  3. 3

    Step 3 — State Your Request Clearly

    Now use a polite request pattern. Since this is a situation where you are asking the company to do something that may require effort, use the softer -(으)ㄹ 수 있을까요? pattern rather than the more direct -아/어 주세요.
    270mm로 교환해 주실 수 있을까요? (Would it be possible to exchange it for a 270mm?)
  4. 4

    Step 4 — Add Relevant Details

    Include your order number or any other information that will help the reader process your request. Use 부탁드립니다 to politely add specifics.
    주문 번호는 12345입니다. (The order number is 12345.)
  5. 5

    Step 5 — Close Politely

    End with a thank-you and a phrase that conveys 'I'm counting on your help.' The combination of 감사합니다 and 잘 부탁드립니다 is a very natural and polite closing.
    감사합니다. 잘 부탁드립니다. (Thank you. I appreciate your help.)
ℹ

COMPLETE MESSAGE

안녕하세요. 지난 월요일에 신발을 주문했는데, 사이즈가 잘못 왔습니다. 270mm로 교환해 주실 수 있을까요? 주문 번호는 12345입니다. 감사합니다. 잘 부탁드립니다.

SECTION 7

Comparing Politeness Levels in Requests

One of the trickiest parts of writing Korean requests is choosing the right level of politeness. Using language that is too casual can come across as rude, while being overly formal in a casual setting can feel awkward. Here's a comparison of the three main levels you will encounter.

LevelEnding StyleWhen to UseExample
Formal (격식체)-습니다 / -ㅂ니다Business emails, official complaints, first contact with companies주문하고 싶습니다.
Polite (존댓말)-아요 / -어요Texting businesses on KakaoTalk, chatting with older acquaintances, casual service interactions주문하고 싶어요.
Casual (반말)-아 / -어Close friends, younger siblings — NEVER use with strangers or businesses주문하고 싶어.

Comparison of Korean politeness levels for written requests

✦

KEY TAKEAWAY

Think of politeness levels like the volume knob on a speaker. 반말 is the lowest setting—fine for your close friends in a quiet room. 존댓말 (-아요/-어요) is the comfortable middle volume for most social settings. 격식체 (-습니다/-ㅂ니다) is the full, clear volume you use when addressing a large room or someone important. When in doubt, turn the volume up—it is always safer to be more polite than less.

For the purposes of this lesson, we recommend defaulting to the formal level (-습니다) for written messages to businesses and unfamiliar people. As you gain experience and confidence, you can adjust down to the polite level (-아요/-어요) in more casual digital interactions like KakaoTalk chats with a shop you have visited before.

SECTION 8

Connection to Advanced Communication

The patterns you have learned in this lesson are the foundation for more advanced Korean writing tasks. As you progress, you will encounter situations that require longer, more nuanced messages—formal business correspondence, academic emails, or detailed customer complaints that span multiple paragraphs. The five-part structure and core grammar patterns remain your base, but you will add layers of sophistication.

This Lesson (Beginner-Intermediate)Advanced Level
Simple requests with -아/어 주세요Indirect requests using -아/어 주시면 감사하겠습니다 (I would be grateful if you could...)
Single reason with -아/어서Multiple reasons using -기 때문에 and -(으)므로 for formal cause-and-effect chains
Short messages (3–5 sentences)Multi-paragraph emails with topic sentences, evidence, and formal closings like 귀사의 발전을 기원합니다
Basic counters (개, 잔, 명)Sino-Korean number system for dates, prices, and formal quantities
감사합니다 as a closingFormal closings tailored to the relationship: 수고하세요, 좋은 하루 보내세요, etc.

Progression from basic to advanced Korean written communication

Do not worry about mastering these advanced patterns right now. The important thing is to build confidence with the core structures. Once writing a simple five-sentence request feels natural, you will find that adding complexity is much easier because the underlying logic—greeting, context, request, details, closing—stays the same.

SECTION 9

Practice Problems

Question 1: CONCEPTUAL

You need to write a message to a Korean restaurant to make a reservation. Which of the following grammar patterns would be most appropriate for making this kind of polite request, and why? Options: (A) -고 싶어 (B) -(으)ㄹ 수 있을까요? (C) -아/어
Show answer
The best answer is (B) -(으)ㄹ 수 있을까요? This is the most polite and appropriate pattern for making a reservation request to a business you have not interacted with before. Option (A) -고 싶어 is casual 반말 and would be rude when addressing a stranger or business. Option (C) -아/어 is also 반말 and inappropriate. When contacting a restaurant, you want to be respectful, so the indirect question form 'Would it be possible to...?' shows proper courtesy.

Question 2: BASIC CALCULATION

Complete the following sentence to order three portions of 불고기 (bulgogi) using the -고 싶습니다 pattern: '불고기 ___ 주문_____.'
Show answer
The completed sentence is: 불고기 3인분 주문하고 싶습니다. Here, 3인분 (sam inbun) means 'three servings,' using the counter 인분 which is specifically used for food portions. The verb 주문하다 (to order) is combined with -고 싶습니다 to express 'I would like to order.' The full message might read: 안녕하세요. 불고기 3인분 주문하고 싶습니다. 감사합니다.

Question 3: INTERMEDIATE

You received a laptop from a Korean online store, but the screen is cracked. Write a complete 4–5 sentence message to customer service explaining the problem and requesting a refund (환불). Use the five-part structure from this lesson.
Show answer
A model answer: 안녕하세요. 지난주에 노트북을 주문한 고객입니다. 받은 노트북의 화면이 깨져 있어서 연락드립니다. 환불해 주실 수 있을까요? 주문 번호는 A-98765입니다. 감사합니다. 잘 부탁드립니다. This message follows all five parts: greeting (안녕하세요), context (지난주에 주문한 고객입니다), reason + request (화면이 깨져 있어서 + 환불해 주실 수 있을까요?), details (주문 번호), and polite closing (감사합니다. 잘 부탁드립니다).

Question 4: APPLIED

You made a dentist appointment for 4월 10일 오전 10시 (April 10th, 10 AM), but you need to change it to 4월 12일 오후 3시 (April 12th, 3 PM). Write a complete message to the dental clinic asking to change your appointment. Include the reason that you have a school exam on the original date (시험이 있어서).
Show answer
A model answer: 안녕하세요. 4월 10일 오전 10시에 예약한 환자입니다. 그날 학교 시험이 있어서 예약 날짜를 변경하고 싶습니다. 4월 12일 오후 3시로 변경할 수 있을까요? 감사합니다. 잘 부탁드립니다. This message effectively uses -(으)ㄴ 환자입니다 to identify yourself, -아/어서 to give the reason for the change, -고 싶습니다 to state your desire, and -(으)ㄹ 수 있을까요? to make the specific request about the new date. The message is concise and follows the five-part structure.

Question 5: CRITICAL THINKING

Compare the following two messages written to a hotel about a broken air conditioner. Which message would be more effective, and why? Message A: '에어컨 고장났어. 고쳐 줘.' Message B: '안녕하세요. 305호 투숙객입니다. 객실 에어컨이 작동하지 않는데, 확인해 주실 수 있을까요? 감사합니다.' Analyze both messages in terms of structure, politeness level, and effectiveness.
Show answer
Message B is far more effective. Message A uses 반말 (casual speech: 고장났어, 고쳐 줘), which would be considered rude when writing to hotel staff. It also lacks structure—there is no greeting, no identification of who you are, and no polite closing. Message B demonstrates excellent use of the five-part structure: it opens with a greeting (안녕하세요), identifies the writer (305호 투숙객입니다 — 'I am a guest in room 305'), explains the problem using background context with -는데, makes a soft request with -아/어 주실 수 있을까요?, and closes politely. The use of 확인하다 (to check/verify) rather than 고치다 (to fix) is also more diplomatic—it implies trust that the hotel will handle the solution, rather than giving an order. This kind of indirect, respectful communication is highly valued in Korean culture.

SUMMARY

Lesson Summary

Summary

Writing short Korean requests and explanations follows a consistent five-part structure: greeting, context, main request, details, and polite closing. The three essential grammar patterns are -아/어 주세요 for direct polite requests, -고 싶습니다 for expressing desires, and -(으)ㄹ 수 있을까요? for soft, indirect requests. To explain reasons, connect clauses with -아/어서 or -(으)ㄴ/는데.

Always use 존댓말 (polite/formal speech) when writing to businesses, strangers, or anyone in a service context. The formal level (-습니다/-ㅂ니다) is the safest default for written messages. Remember to include scenario-specific vocabulary—주문하다 for orders, 예약하다 for appointments, and 교환하다/환불하다 for service issues—and always close with 감사합니다 or 잘 부탁드립니다 to leave a positive impression.

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