Regret & Hindsight¶

Quick Reference¶

Pattern	Meaning	Tone	Example
-ㄹ 걸 (그랬다)	Should have...	Regret, wishing	갈 걸 (그랬어)
-았/었어야 했는데	Should have...	Obligation not met	갔어야 했는데

-ㄹ 걸 (그랬다) (I should have...)¶

Formation¶

All verbs: - Add -ㄹ 걸 after vowel stems: 가다 → 갈 걸 - Add -을 걸 after consonant stems: 먹다 → 먹을 걸

Common forms: - 갈 걸 (그랬어) - 갈 걸 (short form) - 갈 걸 (그랬어요) (polite)

Negative: - 안 갈 걸 (그랬어) - "I shouldn't have gone" - 가지 말 걸 (그랬어) - "I shouldn't have gone"

Usage¶

Express regret or wishing you had done something differently. The 그랬다 part is often omitted in speech:

Examples:

더 일찍 일어날 걸 그랬어.
I should have woken up earlier. (regretting)

그 영화를 볼 걸.
I should have watched that movie.

우산을 가져올 걸 그랬어요.
I should have brought an umbrella.

진작 말할 걸.
I should have said so earlier.

커피를 안 마실 걸.
I shouldn't have drunk coffee.

그 옷을 살 걸 그랬어요.
I should have bought those clothes.

Emotional Tone¶

This pattern carries strong emotional weight: - Personal regret - Wishing you could change the past - Often said with a sigh - Less about obligation, more about wishing

Common Scenarios¶

Missing opportunities:

그때 고백할 걸 그랬어.
I should have confessed then.

Wrong choices:

다른 거 주문할 걸.
I should have ordered something else.

Not acting:

더 열심히 공부할 걸 그랬어.
I should have studied harder.

-았/었어야 했는데 (Should have...)¶

Formation¶

Past tense + 어야 했는데: - 가다 → 갔어야 했는데 - 먹다 → 먹었어야 했는데 - 하다 → 했어야 했는데

Negative: - 안 갔어야 했는데 - "shouldn't have gone" - 가지 말았어야 했는데 - "shouldn't have gone"

Usage¶

Express that you failed to meet an obligation or expectation. Stronger sense of duty than -ㄹ 걸:

Examples:

미리 전화했어야 했는데.
I should have called in advance.

숙제를 했어야 했는데.
I should have done my homework.

회의에 갔어야 했는데.
I should have gone to the meeting.

더 조심했어야 했는데요.
I should have been more careful.

일찍 출발했어야 했는데.
We should have left earlier.

Usage Context¶

This pattern emphasizes: - Responsibility or obligation - Something you were supposed to do - Often used when explaining/apologizing - More serious tone than -ㄹ 걸

Common Patterns¶

With apologies:

미안해요. 전화했어야 했는데.
I'm sorry. I should have called.

Explaining consequences:

미리 예약했어야 했는데 자리가 없어요.
We should have reserved in advance, but there are no seats.

Self-reproach:

더 잘했어야 했는데.
I should have done better.

Key Differences¶

-ㄹ 걸 (그랬다)¶

Emotion: Personal regret, wishing
Focus: "I wish I had..."
Tone: Softer, more emotional
Context: Personal desires and wishes

Example:

그 케이크를 살 걸.
I wish I had bought that cake. (personal regret)

-았/었어야 했는데¶

Emotion: Failed obligation
Focus: "I was supposed to..."
Tone: Stronger, more serious
Context: Responsibilities and duties

Example:

그 케이크를 샀어야 했는데.
I should have bought that cake. (it was my responsibility)

Combined Usage¶

Sometimes both can work, with different nuances:

약속 시간에 맞춰 갈 걸 그랬어.
I wish I had arrived on time. (personal regret)

약속 시간에 맞춰 갔어야 했는데.
I should have arrived on time. (I had an obligation)

Practice Exercises¶

Exercise 1: Choose the Pattern¶

Use -ㄹ 걸 or -었어야 했는데:

You regret not buying a coat when it was on sale.
You were supposed to submit a report but forgot.
You wish you had studied abroad.
You should have called your friend on their birthday.
You regret eating too much at dinner.

Exercise 2: Complete the Sentences¶

비가 올 줄 알았으면 우산을 _____ (가져오다).
시험이 어려웠어요. 더 _____ (공부하다).
어제 친구 생일이었는데 연락을 _____ (하다).
그 영화 재미있었대요. 같이 _____ (보다).
중요한 회의였어요. 꼭 _____ (참석하다).

Exercise 3: Translate¶

I should have saved money. (regret)
I should have been there. (obligation)
I shouldn't have said that. (regret)
I should have checked the time. (obligation)
I wish I had learned Korean earlier. (personal wish)

Exercise 4: Situation-Based¶

What would you say?

You missed a limited-time sale on something you wanted.
You forgot to attend your friend's important event.
You regret choosing the wrong major in college.
You were supposed to pick up your friend but forgot.
You wish you had taken more photos during your trip.

Answer Key

Exercise 1: 1. 그 코트를 살 걸 그랬어 2. 보고서를 제출했어야 했는데 3. 유학 갈 걸 그랬어 4. 전화했어야 했는데 5. 덜 먹을 걸 / 많이 먹지 말 걸

Exercise 2: 1. 가져올 걸 그랬어요 / 가져왔어야 했는데요 2. 공부할 걸 그랬어요 / 공부했어야 했는데요 3. 했어야 했는데 4. 볼 걸 그랬어 5. 참석했어야 했는데요

Exercise 3: 1. 돈을 모을 걸 그랬어 2. 거기 갔어야 했는데 3. 그 말을 하지 말 걸 그랬어 4. 시간을 확인했어야 했는데 5. 한국어를 진작 배울 걸 그랬어

Exercise 4: 1. 그때 살 걸 그랬어 2. 갔어야 했는데 정말 미안해 3. 다른 전공을 선택할 걸 그랬어 4. 데리러 갔어야 했는데 5. 사진을 더 많이 찍을 걸 그랬어

Additional Patterns¶

-ㄹ 걸 그랬어요? (Suggestion with regret)¶

Used to suggest something to someone else, implying they should have done it:

더 일찍 올 걸 그랬어요.
You should have come earlier.

물어볼 걸 그랬어요.
You should have asked.

Intensifying with 진작¶

진작 = "much earlier, long ago"

진작 할 걸 그랬어.
I should have done it much earlier.

진작 말했어야 했는데.
I should have said so long ago.

Common Mistakes¶

1. Using wrong tense with -어야 했는데:

❌ 가야 했는데 (present tense)
✓ 갔어야 했는데 (past tense)

2. Forgetting 그랬다 context with -ㄹ 걸:

The 그랬다/그랬어 can be omitted, but understand it's implied:
갈 걸 = 갈 걸 그랬어

3. Using -ㄹ 걸 for others' obligations:

❌ 네가 할 걸 그랬어. (awkward)
✓ 네가 했어야 했어. (correct for others)
✓ 할 걸 그랬어. (only for yourself)

Natural Usage Tips¶

Add 그랬어요 in full sentences for emphasis
Omit 그랬어 in casual speech: just say 갈 걸...
Use 진작 for stronger regret about timing
Combine with 미안해요 when apologizing
Sigh or use hesitant tone for emotional effect

Cultural Note¶

Korean culture values humility and self-reflection. These regret patterns are used frequently, even for small things:

물 한 잔 더 마실 걸. (I should have drunk more water)
점심 뭐 먹지? 김치찌개 먹을 걸 그랬어. (What should we eat? I should have had kimchi stew)

Using these patterns shows: - Self-awareness - Willingness to admit mistakes - Reflective thinking - Emotional honesty

Don't overuse, but don't be afraid to express regret when appropriate—it's natural and expected in Korean communication.