HYEJU LANGUAGE LAB · INTERMEDIATE 52 · LESSON 137
-았/었더라면if (only) I had… (but I didn’t)
-았/었더라면 imagines the opposite of what really happened in the past: 조금만 일찍 출발했더라면 기차를 탔을 거예요 (If I had left a little earlier, I would have caught the train). It often carries regret, or sometimes relief.
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A situation you already know
You missed a concert because tickets sold out in minutes.
If I’d booked right away yesterday, I could have gone.
In reality you didn’t book, so you couldn’t go. -았/었더라면 + -았/었을 텐데요 expresses that regret.
Build the form
- 예매하다 → 예매했 + 더라면 → 예매했더라면Complete expression
- 알다 → 알았 + 더라면 → 알았더라면Complete expression
- 가다 → 갔 + 더라면 → 갔더라면Complete expression
- 없다 → 없었 + 더라면 → 없었더라면Complete expression
- 학생 → 학생이었 + 더라면 → 학생이었더라면Complete expression
- Past stem + -더라면: 했더라면, 알았더라면, 갔더라면.
- Nouns: N이었/였더라면 → 학생이었더라면, 의사였더라면.
- The second clause is usually an imagined past result: -았/었을 거예요, -았/었을 텐데(요).
- Regret: 좋았을 텐데요 / -았/었을 텐데요. Relief: 큰일 날 뻔했어요 / 다쳤을 거예요.
- Negative: 안 -았/었더라면 / -지 않았더라면 → 그 사람을 안 만났더라면.
- Often begins with 만약(에) or 조금만.
Think in Korean · an English-speaker’s guide
- This is English “If I had…, I would have…” (third conditional). Same logic: the opposite of reality.
- The second part loves -았/었을 텐데요 (“it would have been… but”), from Lesson 110.
- -았/었다면 (Lesson 133) can mean the same; -더라면 sounds more emotional and regretful.
Six examples in context
If I had studied a little more, I would have passed.
If I had brought an umbrella then, I wouldn’t have gotten wet.
If I had known in advance, I would have helped.
If I hadn’t worn a seatbelt, I would have been badly hurt.
If I hadn’t met that friend, I wouldn’t be who I am today.
If the weather had been nice, we would have gone to the beach. What a shame.
Compare with related patterns
-ㄴ/는다면
시간이 있다면 갈게요.“If I have time, I’ll go.” Supposition about now or the future (Lesson 133).
-(으)ㄹ걸 그랬다
일찍 출발할걸 그랬어요.“I should have left early.” Regret in one simple sentence (Lesson 90).
-았/었으면 좋았을 텐데
일찍 출발했으면 좋았을 텐데요.“It would have been nice if I’d left early.” Very similar regret, a bit softer.
| Pattern | Choose it when… |
|---|---|
| -았/었더라면 … -았/었을 텐데 | If I had… (but I didn’t) — regret |
| -았/었더라면 … -았/었을 거예요 | If I had…, I would have… |
| -ㄴ/는다면 | If (supposing) now / future |
| -(으)ㄹ걸 그랬다 | I should have… |
Common mistakes
It needs the past tense: -았/었더라면.
The result is also an imagined past: -았/었을 거예요.
Future supposition → -ㄴ/는다면.
Nouns: N이었/였더라면.
Mini practice · six questions
Try each one before opening the answer. Translation answers are models; other natural wording is possible.
- Fill in the blank알람을 ______ 늦잠을 안 잤을 거예요. (맞추다)
Check answer
알람을 맞췄더라면 늦잠을 안 잤을 거예요.
Past stem + 더라면.
- Fill in the blank그때 그 집을 ______ 지금 부자가 됐을 텐데요. (사다)
Check answer
그때 그 집을 샀더라면 지금 부자가 됐을 텐데요.
사다 → 샀더라면.
- Choose the natural form지도를 (봤더라면 / 본다면) 길을 안 잃어버렸을 거예요.
Check answer
봤더라면
Opposite of a past fact → -았/었더라면.
- Choose the natural form그 버스를 탔더라면 사고를 (당했을 거예요 / 당할 거예요).
Check answer
당했을 거예요
Imagined past result → -았/었을 거예요.
- Fix the mistake조금만 더 기다리더라면 그 사람을 만났을 거예요.
Check answer
조금만 더 기다렸더라면 그 사람을 만났을 거예요.
기다리다 → 기다렸더라면.
- Say it in KoreanIf I had known, I would have come sooner.
Check answer
알았더라면 더 일찍 왔을 텐데요.
Regret → -았/었더라면 … -았/었을 텐데요.
Today’s key point
-았/었더라면 + -았/었을 거예요 / -았/었을 텐데요 = “If I had…, I would have…”: imagining the opposite of the real past, usually with regret (sometimes relief).
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