Mastering the Korean ‘기’ form is crucial for beginners. It turns verbs into nouns and is key for everyday communication. In this guide, we’ll show you how to use ‘기’ in Korean, breaking down its usage and structure in simple terms to help you use it confidently in sentences.
Contents
1. Definition
‘기’ is a grammatical form that attaches to a verb stem to indicate the act or process of doing something. In English, it can be translated to “doing” (gerund) or “to do” (infinitive). It is commonly used when forming noun phrases or connecting with other clauses.
2. Form (Structure)
The structure for using ‘기’ is straightforward:
Verb stem + ‘기’
For example:
- 가다 (to go) + 기 = 가기 (going)
- 먹다 (to eat) + 기 = 먹기 (eating)
Here’s a table to illustrate the structure:
| Verb | Stem + 기 |
| 가다 (to go) | 가기 (going) |
| 먹다 (to eat) | 먹기 (eating) |
| 마시다 (to drink) | 마시기 (drinking) |
3. Meaning & Usage
The grammar form ‘기’ is used to transform verbs into nouns, making them function similarly to gerunds in English (-ing form). This structure is widely used in various contexts, such as describing actions, listing activities, expressing preferences, and forming fixed expressions.
1. Describing an Action as a Concept
The ‘기’ form turns verbs into nouns, allowing them to refer to actions in a general sense.
- 한국어 배우기는 재미있어요. (Learning Korean is fun.)
- 운동하기 전에 준비 운동을 해야 해요. (You should warm up before exercising.)
- 책 읽기는 제 취미 중 하나예요. (Reading books is one of my hobbies.)
- 이 길로 가기는 위험해요. (Going this way is dangerous.)
- 요리하기는 생각보다 어려워요. (Cooking is harder than I thought.)
2. Listing Actions or Steps
It is often used to list actions sequentially, especially in instructions or steps.
- 운동하기, 샤워하기, 그리고 식사하기가 제 일과예요. (Exercising, showering, and eating are my daily routines.)
- 비밀번호를 입력하기, 확인 버튼을 누르기가 필요해요. (You need to enter the password and press the confirm button.)
- 시험 공부하기, 노트 정리하기, 복습하기가 중요해요. (Studying for exams, organizing notes, and reviewing are important.)
- 짐 싸기, 공항 가기, 출국 심사 받기를 끝냈어요. (I finished packing, going to the airport, and passing through immigration.)
- 설거지하기, 방 청소하기, 빨래하기는 매일 해야 해요. (Doing the dishes, cleaning the room, and doing the laundry are daily tasks.)
3. Expressing Preferences or Likes/Dislikes
‘기’ is commonly used with verbs like 좋아하다 (to like), 싫어하다 (to dislike), 즐기다 (to enjoy), 어려워하다 (to find difficult), and 쉬워하다 (to find easy). These verbs often express feelings or preferences about actions.
- 저는 영화 보기 좋아해요. (I like watching movies.)
- 아침 일찍 일어나기는 힘들어요. (Waking up early in the morning is hard.)
- 그는 노래 부르기를 싫어해요. (He dislikes singing.)
- 새로운 사람을 만나기는 즐거워요. (Meeting new people is enjoyable.)
- 아이들은 영어로 말하기를 쉬워해요. (Children find speaking English easy.)
📌 Note: While “어렵다” and “쉽다” are adjectives in Korean, we use their verb forms “어려워하다” and “쉬워하다” with ‘기’ to express finding an action difficult or easy.
4. Used in Fixed Expressions
Certain expressions naturally use the ‘기’ form, often appearing in common phrases.
- 비가 오기 전에 집에 가자. (Let’s go home before it rains.)
- 밥을 먹기 전에 손을 씻어요. (Wash your hands before eating.)
- 다시 만나기를 바랍니다. (I hope to meet you again.)
- 그 말을 믿기는 어려워요. (It’s hard to believe that statement.)
- 한국에서 살기는 어때요? (How is living in Korea?)
4. Key Points to Remember
Key Points to Remember
- ‘기’ turns verbs into nouns, allowing them to function as subjects or objects in a sentence.
- It is commonly used in fixed expressions such as ‘-기 시작하다’ (to start doing something) and ‘-기 쉽다’ (to be easy to do).
- ‘기’ and ‘는 것’ have different usages; ‘기’ is often used for general concepts or habits, while ‘는 것’ is used for descriptions.
- ‘기’ cannot be used with ‘싶다’; use ‘고 싶다’ instead when expressing desires.
- For ongoing actions, use ‘는 중’ instead of ‘기’.
5. Practice Exercises
Practice Exercises: Complete the sentences with the correct form of ‘기’. (English translations are included in parentheses.)
- 저는 매일 아침 _____ 좋아해요. (I like exercising every morning.)
- 친구와 함께 영화 _____ 즐겨요. (I enjoy watching movies with my friend.)
- 한국어 _____ 어렵지만 재미있어요. (Learning Korean is difficult but fun.)
- 시험 준비 _____ 힘들었어요. (Preparing for the exam was hard.)
- 요리 _____ 쉬워요? (Is cooking easy?)
- 운동 _____ 건강에 좋아요. (Exercising is good for your health.)
- 새로운 사람을 만나 _____ 즐거웠어요. (Meeting new people was enjoyable.)
- 숙제를 _____ 싫어해요. (I dislike doing homework.)
- 여행 _____ 설레요. (Traveling is exciting.)
- 책을 _____ 재미있어요? (Is reading books fun?)
6. Answers
- 운동하기
- 영화 보기
- 한국어 배우기
- 준비하기
- 요리하기
- 운동하기
- 만나기
- 하기
- 여행하기
- 읽기
7. Common Mistakes and Tips
⚠️ Mistake 1: Using ‘기’ Instead of ‘는 것’ in Some Cases
Incorrect: 저는 한국어 배우기가 좋아요. ❌ (I like learning Korean.)
Correct: 저는 한국어 배우는 것이 좋아요. ✅ (I like learning Korean.)
Incorrect: 요리하기를 좋아해요. ❌ (I like cooking.)
Correct: 요리하는 것을 좋아해요. ✅ (I like cooking.)
💡 Tip: While both ‘기’ and ‘는 것’ turn verbs into nouns, their usage can depend on context. In many cases, ‘는 것’ sounds more natural when describing subjective experiences, feelings, or sensory perceptions. However, both forms can be correct depending on the speaker’s intent.
⚠️ Mistake 2: Using ‘기’ with ‘싶다’ Instead of the Verb Stem + ‘고 싶다’
Incorrect: 저는 여행하기 싶어요. ❌ (I want to travel.)
Correct: 저는 여행하고 싶어요. ✅ (I want to travel.)
Incorrect: 한국에서 살기가 싶어요. ❌ (I want to live in Korea.)
Correct: 한국에서 살고 싶어요. ✅ (I want to live in Korea.)
💡 Tip: The verb ‘싶다’ (to want) must be used with ‘고’, not ‘기’. The correct structure is Verb Stem + 고 싶다 when expressing desires.
⚠️ Mistake 3: Misunderstanding the Interchangeability of ‘기’ and ‘는 것’
Many learners mistakenly believe that ‘기’ and ‘는 것’ have strictly separate uses. However, in practice, these two forms are often interchangeable.
Examples:
- 한국에서 살기는 쉬워요. ✅ (Living in Korea is easy.)
- 한국에서 사는 것은 쉬워요. ✅ (Living in Korea is easy.)
Both sentences are correct and natural.
💡 Tip: While ‘기’ and ‘는 것’ can be used interchangeably, there might be subtle differences:
- ‘기’ tends to be more abstract or general.
- ‘는 것’ can imply a more specific instance or experience.
- However, in everyday conversations, these differences are often negligible, and both forms are used freely.
📍 Want to dive deeper into the differences between ‘기’ and ‘는 것’? Explore our detailed comparison by clicking the button below 👇👇👇:
⚠️ Mistake 4: Using ‘기’ Instead of ‘는 중’ for Ongoing Actions
Incorrect: 지금 공부하기예요. ❌ (I am studying now.)
Correct: 지금 공부하는 중이에요. ✅ (I am studying now.)
Incorrect: 그는 전화하기예요. ❌ (He is calling.)
Correct: 그는 전화하는 중이에요. ✅ (He is calling.)
💡 Tip: ‘기’ is used to turn verbs into nouns but does not indicate an ongoing action. Use ‘는 중’ to describe actions currently in progress.
⚠️ Mistake 5: Overusing ‘기’ Instead of Using the Dictionary Form
Incorrect: 제 취미는 요리하기예요. ❌ (My hobby is cooking.)
Correct: 제 취미는 요리예요. ✅ (My hobby is cooking.)
Incorrect: 저는 달리기 좋아해요. ❌ (I like running. – when referring to the act of running)
Correct: 저는 달리는 것을 좋아해요. ✅ (I like running.)
Also correct: 저는 달리기를 좋아해요. ✅ (I like running. – when referring to running as an activity or sport)
💡 Tip: In some cases, it’s more natural to use the noun form of the verb (e.g., 요리, 독서, 운동) rather than Verb + 기. When expressing hobbies or interests, check if a natural noun form exists. ‘달리기’ is a valid noun meaning “running” and can be used naturally in sentences like “저는 달리기를 좋아해요.”.
The Korean grammar point ‘기’ is essential for beginners. It is used to turn verbs into nouns, expressing the act of doing something. Practice using ‘기’ with various verbs to master its use in everyday situations. By understanding this grammar point, you will be able to express actions and plans more effectively in Korean.