The Korean grammar pattern ‘-(으)ㄹ까 싶다’ is commonly used to express worry, doubt, or tentative thoughts in a soft and indirect way. It’s often found in both spoken and written Korean when the speaker wants to sound cautious, uncertain, or considerate. In this post, you’ll learn how to use ‘-(으)ㄹ까 싶다’ correctly through clear explanations, real-life examples, and tips to avoid common mistakes.
Contents
1. Definition
‘-(으)ㄹ까 싶다’ is used to express:
- A vague concern or worry
- A tentative plan or intention
- A speculative guess
It corresponds loosely to phrases like “I’m worried that…”, “I wonder if…”, or “I’m thinking maybe…” in English, depending on the context.
2. Form (Structure)
The grammar pattern ‘-(으)ㄹ까 싶다’ is attached to the stem of a verb or adjective to express worry, doubt, or tentative thoughts. It is used both with verbs and adjectives, and the form varies depending on the final letter of the stem.
Conjugation Rules:
- If the stem ends in a vowel, add -ㄹ까 싶다
- If the stem ends in a consonant (except ㄹ), add -을까 싶다
- If the stem ends in ㄹ, drop the ‘ㄹ’ and simply add -까 싶다
This form can be used with both verbs (to express a possible action) and adjectives (to express a concern or guess about a state or condition).
Conjugation Table
| Verb/Adjective Stem Ending | Pattern | Example |
| Vowel-ending | -ㄹ까 싶다 | 가다 → 갈까 싶다 I’m thinking about going 예쁘다 → 예쁠까 싶다 I wonder if it might be pretty |
| Consonant-ending | -을까 싶다 | 먹다 → 먹을까 싶다 I’m thinking about eating 많다 → 많을까 싶다 I think it might be too much |
| ㄹ-ending (drop ㄹ) | -까 싶다 | 만들다 → 만들까 싶다 I’m thinking about making 길다 → 길까 싶다 I think it might be long |
3. Meaning & Usage
The pattern ‘-(으)ㄹ까 싶다’ is used to express subtle feelings such as worry, doubt, tentative intention, or speculation. It appears in everyday Korean, often to soften statements or avoid sounding too direct. This pattern can be used with both verbs and adjectives.
1. To express worry or concern
Used when the speaker is worried something might happen (usually negative).
- 비가 올까 싶어서 우산을 챙겼어요.
(I was worried it might rain, so I brought an umbrella.) - 너무 늦을까 싶어서 서둘렀어요.
(I was worried I might be too late, so I rushed.) - 길이 막힐까 싶어서 일찍 출발했어요.
(I was worried there might be traffic, so I left early.) - 발표를 못 할까 싶어서 연습을 많이 했어요.
(I was worried I might not do well in the presentation, so I practiced a lot.) - 시험을 망칠까 싶어 밤새 공부했어요.
(I was afraid I might fail the exam, so I studied all night.)
💡 Note: In spoken Korean, ‘-싶어’ is often used as a shortened form of ‘-싶어서’. For example, “망칠까 싶어 밤새 공부했어요” is commonly used in conversation instead of the full form “망칠까 싶어서…”.
2. To show tentative thoughts or intentions
Used when someone is softly suggesting or considering doing something.
- 주말에 혼자 여행을 갈까 싶어요.
(I’m thinking about taking a trip alone this weekend.) - 점심에는 샐러드를 먹을까 싶어요.
(I’m considering having salad for lunch.) - 조금 쉬었다가 다시 할까 싶어요.
(I’m thinking of taking a break and then continuing.) - 운동을 시작할까 싶어요.
(I’m thinking about starting to work out.) - 자격증 공부를 해볼까 싶어요.
(I’m thinking about studying for a certification.)
3.To make a speculative guess
Used when someone is guessing or wondering about a possible current state or situation.
- 민수는 아직 집에 있을까 싶어요.
(I wonder if Minsu is still at home.) - 그 사람이 화났을까 싶기도 해요.
(I wonder if that person might be angry.) - 가격이 너무 비쌀까 싶어서 안 샀어요.
(I thought it might be too expensive, so I didn’t buy it.) - 길을 잘못 들었을까 싶어요.
(I’m afraid I may have taken the wrong way.) - 이게 도움이 될까 싶지만 한번 해볼게요.
(I’m not sure this will help, but I’ll give it a try.)
4. With adjectives to express concern or speculation about a state
Used with adjectives to express tentative speculation or mild worry about conditions or qualities.
- 음식이 너무 짤까 싶어서 덜 넣었어요.
(I was worried it might be too salty, so I added less.) - 내용이 어려울까 싶어서 쉽게 설명했어요.
(I was worried it might be too difficult, so I explained it simply.) - 날씨가 추울까 싶어 두꺼운 옷을 입었어요.
(I was worried it might be cold, so I wore thick clothes.) - 길이 너무 길까 싶어서 다른 코스를 골랐어요.
(I thought it might be too long, so I chose another route.) - 영화가 지루할까 싶어 다른 영화를 봤어요.
(I thought the movie might be boring, so I watched a different one.)
4. Key Points to Remember
- This pattern is used with both verbs and adjectives.
- It expresses tentative thoughts, worries, or speculative guesses.
- It’s often used to soften the tone of a statement and avoid sounding too direct.
- It cannot be used to express definite intentions or strong statements.
- Frequently appears in spoken Korean and informal writing.
5. Practice Exercises
Fill in the blank with the correct form of ‘-(으)ㄹ까 싶다’.
- 날씨가 추워서 코트를 (입다) ________.
(I thought I might wear a coat because it’s cold.) - 약속에 늦을까 봐 (택시를 타다) ________.
(I was worried I might be late, so I considered taking a taxi.) - 오늘은 좀 (쉬다) ________.
(I think I might rest today.) - 사람이 너무 많을까 봐 (미리 가다) ________.
(I was afraid there’d be too many people, so I went early.) - 그 친구가 화났을까 봐 (연락하다) ________.
(I thought she might be angry, so I contacted her.) - 다음 달부터 (영어 공부하다) ________.
(I’m thinking of studying English from next month.) - 그거는 너무 어려울까 봐 (선택 안 하다) ________.
(I thought it might be too difficult, so I didn’t choose it.) - 시간이 없어서 그냥 (그냥 집에 가다) ________.
(Since I had no time, I thought I’d just go home.) - 너무 피곤해서 약속을 (취소하다) ________.
(I was too tired, so I thought about canceling the plan.) - 사람들이 이상하게 볼까 봐 (묻지 않다) ________.
(I was afraid people might find it strange, so I didn’t ask.)
6. Answers
- 입을까 싶었어요
- 택시를 탈까 싶었어요
- 쉴까 싶어요
- 미리 갈까 싶었어요
- 연락할까 싶었어요
- 영어 공부할까 싶어요
- 선택 안 할까 싶었어요
- 그냥 집에 갈까 싶었어요
- 취소할까 싶었어요
- 묻지 않을까 싶었어요
7. Common Mistakes and Tips
⚠️ Mistake 1: Using it for strong or definite intentions
Incorrect: 내일부터 꼭 운동할까 싶어요. ❌
Correct: 내일부터 꼭 운동할 거예요. ✅
💡 Tip: ‘-(으)ㄹ까 싶다’ implies uncertainty. Use ‘-(으)려고 하다’ or future tense for firm plans.
⚠️ Mistake 2: Using ‘-(으)ㄹ까 싶다’ with adjectives without considering nuance
Incorrect: 이 음식은 맛있을까 싶어요. ❌ (may sound unnatural)
Correct: 이 음식은 맛있을 것 같아요. ✅
💡 Tip: ‘-(으)ㄹ까 싶다’ can be used with adjectives to express cautious speculation or worry. However, for positive guesses or general assumptions, ‘-(으)ㄹ 것 같다’ is more natural and common.
⚠️ Mistake 3: Using it for past speculation
Incorrect: 어제 비가 왔을까 싶어요. ❌
Correct: 어제 비가 왔을지도 몰라요. ✅
💡 Tip: ‘-(으)ㄹ까 싶다’ is used for future or present speculation. For past events, use ‘-았/었을지도 모르다’.
The Korean grammar pattern ‘-(으)ㄹ까 싶다’ is a useful and subtle way to express worry, tentative thoughts, or uncertain plans. It softens statements, making them sound less direct or assertive. Practice using it in daily expressions to build fluency and nuance in your Korean communication.