-아/어 오다
Has Been, Coming Towards
-아/어 오다 shows an action that started in the past and continues to the present ('have been doing'), or an action done while moving towards the speaker ('do and come').
How It Works
This pattern is versatile and its meaning depends heavily on the context. It's formed by attaching -아/어 to a verb stem, followed by the verb 오다.
1. Continuation from Past to Present ('have been -ing')
This usage emphasizes that an action or state began in the past and has continued up to the present moment. It implies a duration and accumulation of the action over time. It is often used with time-related words like 오랫동안 (for a long time), -동안 (during, for), or -부터 (since).
- 지금까지 열심히 공부해 왔어요. (I have been studying hard until now.)
- 우리는 이 규칙을 계속 지켜 왔습니다. (We have been following this rule continuously.)
This is the direct opposite of -아/어 가다, which describes an action continuing from the present into the future.
2. Action and Movement Towards Speaker ('do and come')
This usage describes performing an action at another location and then coming to the speaker's location, bringing the result of that action. It's a sequence of two actions: 'do something' and then 'come'.
- 친구가 커피를 사 왔어요. (My friend bought coffee and came/brought it.)
- 점심을 만들어 왔어요. (I made lunch and came/brought it.)
Conjugation:
The conjugation follows the standard -아/어 rules.
- Verb stem ends in ㅏ or ㅗ: + -아 오다 (e.g., 사다 → 사 오다, 보다 → 봐 오다)
- Verb stem ends in any other vowel: + -어 오다 (e.g., 만들다 → 만들어 오다, 읽다 → 읽어 오다)
- 하다 verbs: → 해 오다 (e.g., 연구하다 → 연구해 오다)
Examples (4)
- 저는 10년 동안 한국어를 가르쳐 왔어요.
I have been teaching Korean for 10 years.
Word by Word: I for 10 years Korean language have taught and come.
This shows the action of teaching started 10 years ago and has continued up to the present moment. This is the 'continuation' meaning.
- 친구가 점심으로 김밥을 사 왔어요.
My friend bought kimbap for lunch and brought it.
Word by Word: Friend for lunch kimbap bought and came.
This indicates two sequential actions: the friend bought kimbap, and then came to the speaker's location with it. This is the 'action and movement' meaning.
- 우리는 오랫동안 이 프로젝트를 준비해 왔습니다.
We have been preparing this project for a long time.
Word by Word: We for a long time this project have prepared and come.
This emphasizes the continuous effort of preparation from a point in the past until now.
- 동생이 도서관에서 책을 빌려 왔어요.
My younger sibling borrowed a book from the library and brought it.
Word by Word: Younger sibling from the library a book borrowed and came.
The sibling performed the action of borrowing at the library and then came back with the book.
Common Mistakes
Using -아/어 오다 for a single, completed past action without continuation.
Different Meaning어제 친구를 만나 왔어요.Better어제 친구를 만났어요.-아/어 오다 implies an action continuing over time up to the present. For a single event that finished in the past, use the simple past tense -았/었-.
Confusing the direction of action with -아/어 가다.
Different Meaning앞으로도 열심히 공부해 올 거예요.Better앞으로도 열심히 공부해 갈 거예요.-아/어 오다 describes an action continuing from the past up to now. For an action that will continue from now into the future, use its counterpart, -아/어 가다.
Learn This First
To express continuing action toward present 'has been', you need verb conjugation.
Related Patterns
- -아/어 가다Keep Doing, Moving Towards
This is the direct opposite of -아/어 오다. While -아/어 오다 describes an action continuing from the past to the present (or moving towards the speaker), -아/어 가다 describes an action continuing from the present into the future (or moving away from the speaker).
- -았/었/였-Past Tense
The past tense marker. It's important to distinguish -아/어 오다 (continuation to the present) from the simple past tense, which marks a single, completed action in the past.
- -고 있다Be -ing
Means 'be -ing'. While -고 있다 focuses on an action in progress at a specific moment, -아/어 오다 emphasizes the duration and continuation of that action from a point in the past until now.
- -던Had Been -ing
A retrospective modifier that describes something that used to happen in the past. It often implies the action is no longer happening, which contrasts with the 'continuation to the present' meaning of -아/어 오다.