았/었: The Past Tense Marker
았/었 are the essential past tense endings in Korean, used to indicate that an action happened or a state existed in the past. They transform present tense verbs into past tense.
Think of them as Korean's version of "-ed" in English - they take verbs from "I eat" to "I ate", or from "I go" to "I went".
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Where Do We Use It?
Completed Actions:
I ate.
먹었어요.
Past States:
I was at home.
집에 있었어요.
Past Experiences:
I went to Korea.
한국에 갔어요.
Telling Stories:
Sharing experiences, describing what happened yesterday, talking about completed actions.
Choosing Rule: Use 았어요 when the verb stem has ㅏ or ㅗ (가았어요 → 갔어요, 오았어요 → 왔어요), and 었어요 for all other vowels (먹었어요, 있었어요).
Examples :-
Basic Past Actions:
1.
I ate.
먹었어요.
2.
I went.
갔어요.
3.
I saw.
봤어요.
4.
I drank.
마셨어요.
5.
I slept.
잤어요.
Past States & Locations:
1.
I was at home.
집에 있었어요.
2.
I was a student.
학생이었어요.
3.
I was in Korea.
한국에 있었어요.
4.
I was busy.
바빴어요.
5.
I was happy.
행복했어요.
Past Experiences:
1.
I went to Korea.
한국에 갔어요.
2.
I met my friend.
친구를 만났어요.
3.
I studied Korean.
한국어를 공부했어요.
4.
I watched a movie.
영화를 봤어요.
5.
I ate kimchi.
김치를 먹었어요.
Irregular Past Conjugations:
1.
I walked. (걷다)
걸었어요.
2.
I was pretty. (예쁘다)
예뻤어요.
3.
I wrote. (쓰다)
썼어요.
4.
I built. (짓다)
지었어요.
5.
I sang. (부르다)
불렀어요.
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Past Tense Conjugation Patterns
Basic Rules:
가다 → 가 + 았어요 = 갔어요
먹다 → 먹 + 었어요 = 먹었어요
오다 → 오 + 았어요 = 왔어요
보다 → 보 + 았어요 = 봤어요
하다 Verbs:
공부하다 → 공부하 + 였어요 = 공부했어요
일하다 → 일하 + 였어요 = 일했어요
좋아하다 → 좋아하 + 였어요 = 좋아했어요
이다 (To Be):
학생이다 → 학생이 + 였어요 = 학생이었어요
의사이다 → 의사이 + 였어요 = 의사이었어요