Korean Grammar: -(으)ㄹ 거예요 vs -(으)ㄹ게요 Explained | Korean Soona

---

The Future Tense vs. The Promise: -(으)ㄹ 거예요 vs -(으)ㄹ게요

When you look up "I will" in a Korean dictionary, you will likely find two grammar patterns: -(으)ㄹ 거예요 and -(으)ㄹ게요. Because they translate to the exact same English phrase, Korean learners frequently mix them up. However, to a native Korean speaker, these two patterns have completely different vibes!

Imagine you are leaving the office. You could say "내일 올 거예요" or "내일 올게요." One sounds like a simple, factual plan. The other sounds like a warm, polite promise to your coworkers. Using the wrong one won't break the conversation, but using the correct one will instantly make you sound like a fluent native speaker.

In today's premium interactive lesson, we will break down the exact nuances, rules, and restrictions of these two essential grammar points through practical dialogue examples.

Click the play buttons in the interactive module below to listen to the native pronunciation and practice reading out loud! 

(The full grammar breakdown and discussion questions are provided at the bottom of the page.)

---

---

Sounding Like a Native Speaker

By mastering the difference between -(으)ㄹ 거예요 (General Plan/Guess) and -(으)ㄹ게요 (Promise/Reaction), you have taken a massive step toward natural Korean conversation.

Remember, -(으)ㄹ게요 is your best friend when you want to sound polite, helpful, and highly considerate of the person you are talking to!

Knowing the grammar rule is great, but building muscle memory through actual speaking is what leads to true fluency.

If you want to practice these nuances in real-time and get immediate feedback on your sentences, join my 1:1 conversation classes. Let's reach your fluency goals together!

---

Full Lesson Transcript, Grammar Breakdown & Discussion (Free Study Materials)

Grammar Breakdown: -(으)ㄹ 거예요 vs -(으)ㄹ게요

In Korean, both '-(으)ㄹ 거예요' and '-(으)ㄹ게요' translate to "I will" or "I am going to." However, their core nuances are entirely different.

-(으)ㄹ 거예요 is simply about stating a fact, a personal plan, or a guess about the future. It is a one-way statement.

On the other hand, -(으)ㄹ게요 is deeply connected to the listener. It is used when your future action is a direct reaction to the current situation, an offer to help, or a promise made to the person you are speaking with.

1. -(으)ㄹ 거예요 (General Future / Plan / Guess)

• Rule (Verbs/Adjectives ending in Vowel): + ㄹ 거예요 (가다 -> 갈 거예요)

• Rule (Verbs/Adjectives ending in Consonant): + 을 거예요 (먹다 -> 먹을 거예요)

A: 주말에 뭐 할 거예요? (What are you going to do this weekend?)

B: 저는 집에서 영화를 볼 거예요. (I will watch a movie at home.)

[Grammar Note: Speaker B is simply stating their pre-decided personal plan for the weekend. It has nothing to do with Speaker A.]

A: 내일 비가 올까요? (Do you think it will rain tomorrow?)

B: 네, 하늘이 흐려서 비가 올 거예요. (Yes, the sky is cloudy, so it will rain.)

[Grammar Note: -(으)ㄹ 거예요 can be used to make a guess about a third-person subject (the weather), which is impossible with -(으)ㄹ게요.]

A: 지민 씨도 파티에 오나요? (Is Jimin coming to the party too?)

B: 네, 지민 씨도 올 거예요. (Yes, Jimin will come.)

[Grammar Note: Stating a factual guess or plan about a third person (Jimin).]

A: 대학생이 되면 무엇을 공부할 거예요? (What will you study when you become a college student?)

B: 저는 한국어를 공부할 거예요. (I will study Korean.)

[Grammar Note: Expressing a strong personal intention and future plan.]

A: 회의가 언제 끝나요? (When does the meeting end?)

B: 아마 오후 3시에 끝날 거예요. (It will probably end at 3 PM.)

[Grammar Note: Expressing a guess about a factual event.]

2. -(으)ㄹ게요 (Promise / Volunteering / Reaction)

• Rule (Action Verbs ending in Vowel): + ㄹ게요 (가다 -> 갈게요)

• Rule (Action Verbs ending in Consonant): + 을게요 (먹다 -> 먹을게요)

Restriction: Only used with Action Verbs and 1st Person Subject ("I" or "We").

A: 전화가 계속 울려요. (The phone keeps ringing.)

B: 아, 제가 받을게요! (Ah, I will answer it!)

[Grammar Note: Speaker B is reacting to the immediate situation and volunteering to do the action for the group.]

A: 도착하면 꼭 연락해 주세요. (Please make sure to contact me when you arrive.)

B: 네, 집에 도착하면 바로 문자 보낼게요. (Yes, I will send a text right after I arrive home.)

[Grammar Note: Speaker B is making a direct promise to Speaker A based on Speaker A's request.]

A: 이 가방이 너무 무겁네요. (This bag is too heavy.)

B: 제가 들어 드릴게요. (I will carry it for you.)

[Grammar Note: Speaker B recognizes Speaker A's struggle and offers to perform an action to help them.]

A: 오늘 점심은 제가 샀어요. (I bought lunch today.)

B: 그럼 커피는 제가 살게요. (Then, I will buy the coffee.)

[Grammar Note: Speaker B's action of buying coffee is a direct reaction and response to Speaker A buying lunch.]

A: 내일은 절대 지각하지 마세요! (Don't be late tomorrow!)

B: 죄송합니다. 내일은 일찍 올게요. (I'm sorry. I will come early tomorrow.)

[Grammar Note: Speaker B is making a strong personal promise to Speaker A regarding their future behavior.]

Free Talking & Discussion Questions

오늘 수업이 끝나고 무엇을 할 거예요?

What will you do after class today?

[O-neul su-eo-bi kkeun-na-go mu-eo-seul hal kkeo-ye-yo?]

오늘 저녁에 친구를 만날 거예요?

Are you going to meet a friend this evening?

[O-neul jeo-nyeog-e chin-gu-reul man-nal kkeo-ye-yo?]

이번 주말에 날씨가 좋을까요? (대답 예시: 네, 좋을 거예요)

Do you think the weather will be good this weekend? (Example answer: Yes, it will be good.)

[I-beon ju-ma-re nal-ssi-ga jo-eul-kka-yo?]

다음 달에 여행을 갈 거예요? 어디로 갈 거예요?

Are you going on a trip next month? Where will you go?

[Da-eum da-re yeo-haeng-eul gal kkeo-ye-yo? Eo-di-ro gal kkeo-ye-yo?]

식당에서 친구가 밥을 샀습니다. 커피는 누가 살 거예요? "제가 _____"

A friend bought a meal at a restaurant. Who will buy the coffee? "I will..."

[Sik-ttang-e-seo chin-gu-ga ba-beul sa-sseum-ni-da. Keo-pi-neun nu-ga sal kkeo-ye-yo? "Je-ga _____"]

제가 한국어 숙제를 좀 도와줄까요?

Shall I help you with your Korean homework?

[Je-ga han-gu-geo suk-je-reul jom do-wa-jul-kka-yo?]

오늘 숙제가 아주 많은데 언제 다 할 거예요?

There is a lot of homework today, when will you do it all?

[O-neul suk-je-ga a-ju ma-neun-de eon-je da hal kkeo-ye-yo?]

교실이 너무 덥네요. 창문을 좀 열까요? (대답 예시: 네, 제가 열게요)

The classroom is too hot. Shall we open the window? (Example answer: Yes, I will open it.)

[Gyo-si-ri neo-mu deom-ne-yo. Chang-mu-neul jom yeol-kka-yo?]

내일은 수업에 늦지 마세요! 선생님에게 어떻게 대답할까요?

Don't be late for class tomorrow! How will you answer the teacher?

[Nae-i-reun su-eo-be neut-jji ma-se-yo! Seon-saeng-ni-me-ge eo-tteo-ke dae-da-pal-kka-yo?]

주말에 보통 집에서 쉴 거예요, 아니면 밖에 나갈 거예요?

Will you usually rest at home on the weekend, or will you go outside?

[Ju-ma-re bo-tong ji-be-seo swil kkeo-ye-yo, a-ni-myeon ba-kke na-gal kkeo-ye-yo?]

앞으로 한국어 공부를 매일 열심히 할 거죠?

You will study Korean hard every day from now on, right?

[A-peu-ro han-gu-geo gong-bu-reul mae-il yeol-ssi-mi hal kkeo-jyo?]

나중에 대학교를 졸업하면 어떤 직업을 가질 거예요?

What kind of job will you have when you graduate from university later?

[Na-jung-e dae-hak-kkyo-reul jo-reo-pa-myeon eo-tteon ji-geo-beul ga-jil kkeo-ye-yo?]

식당에서 반찬이 부족할 때 종업원이 어떻게 말해요? "더 갖다 _____"

When side dishes are lacking in a restaurant, how does the staff say? "I will bring more..."

[Sik-ttang-e-seo ban-cha-ni bu-jo-kal ttae jong-eo-bwo-ni eo-tteo-ke mal-hae-yo? "Deo gat-tta _____"]

이번 주말에 친구가 이사를 합니다. 친구를 도와줄 거예요?

A friend is moving this weekend. Will you help your friend?

[I-beon ju-ma-re chin-gu-ga i-sa-reul ham-ni-da. Chin-gu-reul do-wa-jul kkeo-ye-yo?]

집에 도착하면 꼭 저한테 전화해 줄 수 있어요?

Can you make sure to call me when you arrive home?

[Ji-be do-cha-ka-myeon kkok jeo-han-te jeon-hwa-hae jul ssu i-sseo-yo?]

---