Korean informal speech is essential for casual conversations with friends, family, and peers. One of the most commonly used informal verb endings in Korean is -아, -어, -해, which helps express present tense naturally. Understanding how to use these endings correctly will make your Korean sound more natural and fluent.
In this guide, we’ll explain the rules for using -아, -어, -해, provide real-life examples, and share key tips to help you master informal speech. Keep reading to improve your Korean conversation skills!
Contents
1. Definition
The informal present tense in Korean is used to describe actions happening now or general facts. In English, this corresponds to the simple present tense (e.g., “eat,” “go,” “do”).
2. Form (Structure)
To conjugate a verb in the informal present tense:
- Remove -다 from the dictionary form of the verb.
- Attach the appropriate ending:
- Use -아 if the final vowel is ㅏ or ㅗ.
- Use -어 if the final vowel is anything else.
- Use -해 for 하다 verbs.
| Verb Type | Example Verb (Dictionary Form) | Example |
| ㅏ, ㅗ vowel | 가다 (to go) | 가 (Go) |
| Other vowels | 먹다 (to eat) | 먹어 (Eat) |
| 하다 verbs | 공부하다 (to study) | 해 (Do) |
3. Meaning & Usage
-아
- 가다 → 가 (to go → go)
(그녀는 학교에 가.)
(She is going to school.) - 마시다 → 마셔 (to drink → drink)
(나는 물을 마셔.)
(I drink water.) - 좋다 → 좋아 (to be good → good)
(이것은 좋아.)
(This is good.) - 앉다 → 앉아 (to sit → sit)
(그는 자리에 앉아.)
(He sits in the chair.) - 오다 → 와 (to come → come)
(친구가 나에게 와.)
(My friend is coming to me.)
-어
- 먹다 → 먹어 (to eat → eat)
(저녁을 먹어.)
(I eat dinner.) - 자다 → 자 (to sleep → sleep)
(그는 지금 자.)
(He is sleeping now.) - 읽다 → 읽어 (to read → read)
(저는 책을 읽어요. )
(I read a book.) - 배우다 → 배워 (to learn → learn)
(나는 한국어를 배워.)
(I am learning Korean.) - 일어나다 → 일어나 (to get up → get up)
(그는 아침 일찍 일어나.)
(He gets up early in the morning.)
-해
- 하다 → 해 (to do → do)
(나는 운동을 해.)
(I do exercise.) - 공부하다 → 공부해 (to study → study)
(저는 열심히 공부해요.)
(I study hard.) - 운동하다 → 운동해 (to exercise → exercise)
(그는 매일 운동을 해.)
(He exercises every day.) - 사랑하다 → 사랑해 (to love → love)
(나는 너를 사랑해.)
(I love you.) - 일하다 → 일해 (to work → work)
(저는 회사에서 일해요.)
(I work at a company.)
4. Key Points to Remember
- -아 is used when the final vowel is ㅏ or ㅗ.
- -어 is used when the final vowel is anything else.
- -해 is used for 하다 verbs.
- This form is only used in informal speech.
5. Practice Exercises
Fill in the blanks with the correct present tense form of the verb.
- 나는 도서관에 ___ (가다). (I go to the library.)
- 주말에 친구를 ___ (만나다). (I meet a friend on the weekend.)
- 나는 한국어를 ___ (공부하다). (I study Korean.)
- 너는 밥을 ___ (먹다). (You eat rice.)
- 우리는 커피를 ___ (마시다). (We drink coffee.)
- 동생이 방에서 ___ (자다). (My younger sibling sleeps in the room.)
- 엄마가 저녁을 ___ (준비하다). (Mom prepares dinner.)
- 나는 아침에 신문을 ___ (읽다). (I read the newspaper in the morning.)
- 그녀는 피아노를 ___ (치다). (She plays the piano.)
- 나는 매일 운동을 ___ (하다). (I exercise every day.)
6. Answers
- 가
- 만나
- 공부해
- 먹어
- 마셔
- 자
- 준비해
- 읽어
- 쳐
- 해
6. Common Mistakes and Tips
⚠️ Mistake 1: Using -아, -어, or -해 in formal situations.
Example:
- Incorrect: 가다 → 가 (In a formal meeting, this would be inappropriate; instead, use 가세요 or 갑니다.)
- Correct: 가다 → 가세요 (This is the polite form used with strangers or in formal situations.)
💡 Tip: These endings are informal and should only be used in casual conversations with people of the same age, friends, or people you’re close to. Avoid using them in formal settings like business situations or with strangers.
⚠️ Mistake 2: Using -아, -어, or -해 with people who you should address formally.
Example:
- Incorrect: 먹다 → 먹어 (This is inappropriate when speaking to someone older or in a formal context. Instead, use 드세요 or 드십니다.)
- Correct: 먹다 → 드세요 (This is the polite form used when addressing someone with respect.)
💡Tip: When talking to people older than you or in formal settings, use -세요 or -습니다 to show respect. The informal endings should only be used with peers or people of similar age.
Understanding the use of the verb endings -아, -어, and -해 is crucial for forming present tense sentences in Korean. By practicing these structures and being aware of common mistakes, students can improve their Korean language skills significantly.