How to Say "The fox must not lose the book" in Korean | -(으)면 Grammar

Quick Answer: "The fox must not lose the book" in Korean is "여우는 책을 잃어버리면 안 돼요." (yeouneun chaekeul ilheobeorimyeon an dwaeyo.). It uses the -(으)면 grammar pattern (If/When (-(으)면)). Level: A2.

How would a Korean say "The fox must not lose the book"? Exactly like this: "여우는 책을 잃어버리면 안 돼요.". Notice the -(으)면 ending — once you recognize it, you will spot it everywhere.

Category: 동물

What does "The fox must not lose the book" mean in Korean?

The Korean sentence "여우는 책을 잃어버리면 안 돼요." translates to "The fox must not lose the book." in English. "여우는 책을 잃어버리면 안 돼요." captures the feeling of "The fox must not lose the book" in a way that sounds gentle and approachable. The polite "-요" ending adds a layer of respect and warmth.

Pronunciation guide: yeouneun chaekeul ilheobeorimyeon an dwaeyo.

Grammar Point: If/When (-(으)면)

The ending -(으)면 expresses a condition ('if') or temporal trigger ('when'). Use -면 after vowel-ending stems, -으면 after consonant-ending stems.

가다 → 가면 (if [someone] goes), 먹다 → 먹으면 (if [someone] eats).

Korean Sentence Structure Breakdown

Korean follows a Subject-Object-Verb (SOV) word order, which is different from English (SVO). In "여우는 책을 잃어버리면 안 돼요.", the verb comes at the end of the sentence. Here is the word-by-word breakdown: • 여우는 (yeouneun) • 책을 (chaekeul) • 잃어버리면 (ilheobeorimyeon) • 안 (an) • 돼요 (dwaeyo)

Try rearranging the words before the verb — in Korean, as long as the verb stays last, the meaning usually stays the same. This flexibility is a superpower.

Why This Korean Expression Sounds Natural

In English, we say "The fox must not lose the book" in a fairly neutral way. Korean reshapes this idea with particles and endings that bake politeness directly into the grammar — no extra words needed.

Cultural Insight

한국 전통 이야기에서 호랑이는 무서운 존재이면서도 때로는 어리숙한 캐릭터로 등장해요. '호랑이와 곶감' 같은 이야기가 대표적입니다.

Examples

여우는 책을 잃어버리면 안 돼요. — yeouneun chaekeul ilheobeorimyeon an dwaeyo. — The fox must not lose the book.

여우는 책을 잃어버리면 안 돼요? — yeouneun chaekeul ilheobeorimyeon an dwaeyo? — Does the fox must not lose the book?

저녁에 여우는 책을 잃어버리면 안 돼요. — jeonyeoke yeouneun chaekeul ilheobeorimyeon an dwaeyo. — In the evening, the fox must not lose the book.

Common Mistakes

Incorrect: 먹면 → Correct: 먹으면. After a consonant-ending stem (먹-), you need the vowel buffer 으 before 면.

Incorrect: 돼요 여우는 책을 잃어버리면 안 → Correct: 여우는 책을 잃어버리면 안 돼요. Korean uses Subject-Object-Verb (SOV) order. The verb must come at the end of the sentence, unlike English where it comes after the subject.

Quiz

How do you say "The fox must not lose the book" in Korean?

The correct Korean translation is "여우는 책을 잃어버리면 안 돼요.". yeouneun chaekeul ilheobeorimyeon an dwaeyo.

Fill in the blank: 여우는 책을 잃어버리면 안 ___

The correct ending is "돼요". The polite -요 form is essential for everyday Korean conversation.