Future Intent & Guessing (겠)
겠 to show firm personal commitment or to make empathetic guesses based on current evidence.
Grammar Rule in 30 Seconds
Use -겠- to express your own strong intention or to make an educated guess about a situation.
- Use for personal intent: 'I will do it' (e.g., 내일 가겠어요).
- Use for guessing/conjecture: 'It must be...' (e.g., 배가 고프겠어요).
- Attach directly to the verb stem: Verb stem + 겠 + ending.
Overview
Korean grammar employs the suffix 겠 (ges) to convey nuanced future-oriented meanings that extend beyond a simple prediction. It fundamentally expresses the speaker's subjective perspective on an action or state. This subjectivity manifests in two primary functions: the speaker's strong intention or will (when the subject is first-person) and a conjecture or assumption (which can apply to any person or state).
Understanding 겠 is crucial for expressing politeness, making inferences, and articulating personal resolve in Korean.
Unlike other future markers that simply state what will happen, 겠 indicates what the speaker intends to make happen or what the speaker feels or logically deduces to be true. It adds a layer of personal commitment or reasoned speculation to your communication. Mastery of 겠 allows you to navigate social interactions with greater precision, making your statements sound more considerate and your deductions more natural.
Conjugation Table
| Type | Stem + 겠 |
Formal (-습니다) |
Polite (-어요) |
Casual (-어 / -다) |
Translation (Context-Dependent) | ||
|---|---|---|---|---|---|---|---|
| :----------- | :------------------- | :-------------------------- | :-------------------------- | :-------------------------- | :--------------------------------------------------------------------------------------------------------------------------------------------- | ||
| Verb | 가다 (to go) |
가겠습니다 |
가겠어요 |
가겠어 / 가겠다 |
I will go (intention), (He/She) must be going (conjecture) | ||
먹다 (to eat) |
먹겠습니다 |
먹겠어요 |
먹겠어 / 먹겠다 |
I will eat (intention), (It) must be delicious (conjecture) | |||
하다 (to do) |
하겠습니다 |
하겠어요 |
하겠어 / 하겠다 |
I will do (intention), (He/She) must be doing (conjecture) | |||
| Adjective | 좋다 (to be good) |
좋겠습니다 |
좋겠어요 |
좋겠어 / 좋겠다 |
It must be good (conjecture), That would be nice (conjecture) | ||
춥다 (to be cold) |
춥겠습니다 |
춥겠어요 |
춥겠어 / 춥겠다 |
It must be cold (conjecture) | |||
피곤하다 (to be tired) |
피곤하겠습니다 |
피곤하겠어요 |
피곤하겠어 / 피곤하겠다 |
You must be tired (conjecture) | |||
| Past Tense | 가다 (to go) |
갔겠습니다 |
갔겠어요 |
갔겠어 / 갔겠다 |
(He/She) must have gone (conjecture) | ||
보다 (to see) |
봤겠습니다 |
봤겠어요 |
봤겠어 / 봤겠다 |
(He/She) must have seen (conjecture) |
How This Grammar Works
겠 functions as a versatile marker, predominantly signifying the speaker's will/intention or conjecture/assumption. Its application subtly shifts depending on the subject of the sentence and the context.나/저 - I, 우리 - we), 겠 indicates a strong, often formal, intention or firm commitment to an action. It conveys the speaker's determination and willingness to perform a task. This usage is common in formal declarations, promises, and polite offerings of service.- In professional settings or public speaking,
겠is used to declare one's firm resolve. For example, a presenter might say발표를 시작하겠습니다(Balpyoreul sijakhagesseumnida - I will now begin the presentation), signaling a definite start. - It often implies a personal responsibility or initiative. If you are offered a task and accept it decisively, you might say
제가 하겠습니다(Jega hagesseumnida - I will do it), indicating your readiness and commitment. - This form is especially prevalent in service industries. When a server takes an order, they often confirm with
네, 알겠습니다(Ne, algesseumnida - Yes, I will understand/receive [your order]), indicating they have registered the request and will act accordingly. It's a polite affirmation of commitment to service.
겠 is used with second-person, third-person, or inanimate subjects, it expresses the speaker's conjecture, assumption, or logical deduction about a situation or another person's state or action. This inference is typically based on observation, prior knowledge, or reasonable intuition. It's not a mere guess but a reasoned conclusion about what is likely to be true.- You use
겠to infer someone else's feelings or condition. Seeing a friend yawn repeatedly, you might say피곤하시겠어요(Piggonhasigesseoyo - You must be tired), expressing an empathetic assumption based on their actions. - It can convey a reaction to a situation or an object. If you see a mouth-watering dish, you instinctively say
맛있겠다!(Masitgetta! - It must be delicious!), which is a conjecture about its taste based on appearance. - For past events,
았/었/였겠is used to express an assumption about something that must have happened. Observing a broken window, you might deduce누가 깼겠어요(Nuga kkaetgesseoyo - Someone must have broken it), inferring a past action based on current evidence. - The casual form
겠다is frequently used in exclamations of conjecture, such as좋겠다(Joketda - That would be good/nice!), implying an envious or appreciative assumption about a situation.
겠 can soften questions and statements, making them sound less direct, more humble, and therefore more courteous. This usage is particularly common in formal inquiries or when seeking confirmation without appearing demanding.- When asking if someone understands,
알겠어요?(Algesseoyo? - Do you understand?) is more direct. However,아시겠습니까?(Asigesseumnikka? - Would you happen to understand? / Might you understand?) uses겠with the honorific시to create a notably softer and more respectful tone. - It can be used to politely offer help or suggest an action. Instead of
도와줄까요?(DoWajulkkayo? - Shall I help you?),도와드리겠습니다(Dowadeurigesemnida - I will help you / I would be glad to help you) conveys a more formal and committed offer of assistance. - In declarative sentences, especially when expressing a negative,
모르겠습니다(Moreugesseumnida - I do not know / I am not sure) is significantly politer than몰라요(Mollayo), implying that despite the speaker's best efforts, they are unable to know or confirm.
Formation Pattern
겠 structure is straightforward, as it attaches directly to the verb or adjective stem. This grammatical element does not trigger any common irregular conjugations (such as ㄹ or ㅂ irregulars), simplifying its application. The general pattern involves two steps:
다 from the word. For example:
가다 (to go) → 가
먹다 (to eat) → 먹
좋다 (to be good) → 좋
피곤하다 (to be tired) → 피곤하
겠 to the Stem: Simply place 겠 directly after the isolated stem.
가 + 겠 → 가겠
먹 + 겠 → 먹겠
좋 + 겠 → 좋겠
피곤하 + 겠 → 피곤하겠
겠, treat the combined form (e.g., 가겠) as a new verb stem. Then, append the appropriate politeness ending based on your communicative context and audience. The most common endings are:
겠습니다 (gesseumnida). Used in highly formal situations, speeches, or reporting to superiors.
최선을 다하겠습니다 (Choeseoneul dahagesseumnida - I will do my best).
겠어요 (gesseoyo). Used in everyday polite conversation with people you don't know well or who are older/of higher status.
배고프겠어요 (Baegopeugesseoyo - You must be hungry).
겠어 (gesseo) or 겠다 (getda). Used with close friends, family, or when speaking to oneself. 겠다 is very common for exclamations of conjecture.
재미있겠다! (Jaemiitgetda! - That looks fun!)
았/었/였) and then attach 겠. The combined form then receives a politeness ending.
보다 (to see) → 봤 (past stem) + 겠 + 어요 → 봤겠어요 (Bwatgesseoyo - You must have seen it).
하다 (to do) → 했 (past stem) + 겠 + 습니다 → 했겠습니다 (Haetgesseumnida - They must have done it).
When To Use It
- Formal Pledges and Announcements: When you are making a strong, public commitment or declaration of intent. This is often seen in official statements, job interviews, or formal presentations.
열심히 공부하겠습니다.(Yeolsimhi gongbuhagesseumnida. - I will study diligently.)새로운 도전에 임하겠습니다.(Saeroun dojeone imhagesseumnida. - I will take on the new challenge.)- Polite Offers of Service/Assistance: In customer service or when volunteering to do something for someone, especially someone deserving of respect.
제가 도와드리겠습니다.(Jega dowadeurigesemnida. - I will help you.)주문하신 음료 곧 가져다드리겠습니다.(Jumunhasin eumnyo got gajyeodadeurigesemnida. - I will bring the drinks you ordered shortly.)- Self-Declarations/Personal Resolve: When expressing a personal decision or determination, though often in a polite or slightly formal tone even to oneself.
이번에는 꼭 성공하겠습니다.(Ibeoneneun kkok seonggonghagesseumnida. - I will definitely succeed this time.)
- Reacting to Observable Situations: When you infer a state or feeling based on what you see, hear, or know about a situation. This is where
겠often acts as
Conjugation of -겠-
| Verb/Adj | Stem | + 겠 | Polite Form |
|---|---|---|---|
|
가다
|
가
|
가겠
|
가겠어요
|
|
먹다
|
먹
|
먹겠
|
먹겠어요
|
|
하다
|
하
|
하겠
|
하겠어요
|
|
춥다
|
춥
|
춥겠
|
춥겠어요
|
|
예쁘다
|
예쁘
|
예쁘겠
|
예쁘겠어요
|
|
읽다
|
읽
|
읽겠
|
읽겠어요
|
Common Contractions
| Full | Contraction |
|---|---|
|
하지 않겠어요
|
안 하겠어요
|
Meanings
The suffix -겠- serves two main functions: expressing the speaker's firm intention or volition, and making a logical inference or guess about a state or action.
Volition
Expressing the speaker's firm intention to perform an action.
“저는 한국어를 공부하겠어요.”
“내일 일찍 일어나겠어요.”
Conjecture
Making an educated guess or inference about a situation.
“정말 맛있겠어요.”
“피곤하겠어요.”
Reference Table
| Form | Structure | Example |
|---|---|---|
|
Affirmative
|
Stem + 겠어요
|
가겠어요
|
|
Negative
|
안 + Stem + 겠어요
|
안 가겠어요
|
|
Question
|
Stem + 겠어요?
|
가겠어요?
|
|
Past Conjecture
|
Stem + 었/았 + 겠어요
|
갔겠어요
|
|
Formal
|
Stem + 겠습니다
|
가겠습니다
|
|
Casual
|
Stem + 겠어
|
가겠어
|
Formality Spectrum
제가 하겠습니다. (Offering help)
제가 하겠어요. (Offering help)
내가 할게. (Offering help)
내가 할게. (Offering help)
The Two Faces of -겠-
Volition
- 의지 Will
Conjecture
- 추측 Guess
Examples by Level
제가 하겠어요.
I will do it.
먹겠어요.
I will eat.
가겠어요.
I will go.
자겠어요.
I will sleep.
맛있겠어요.
It must be delicious.
재미있겠어요.
It must be fun.
내일 공부하겠어요.
I will study tomorrow.
어렵겠어요.
It must be difficult.
그분은 벌써 도착했겠어요.
He must have arrived already.
제가 도와드리겠어요.
I will help you.
날씨가 춥겠어요.
The weather must be cold.
이번 주말에 쉬겠어요.
I will rest this weekend.
그 소식을 들으면 놀라겠어요.
You would be surprised if you heard that news.
회의에 참석하겠어요.
I will attend the meeting.
그 결정은 쉽지 않았겠어요.
That decision must not have been easy.
다음에 다시 방문하겠어요.
I will visit again next time.
그 정도면 충분하겠어요.
That should be enough.
그렇게 말씀하시니 이해가 되겠어요.
Now that you say that, I understand.
그 상황이라면 누구나 화가 나겠어요.
In that situation, anyone would be angry.
제안을 수락하겠어요.
I will accept the proposal.
그리 쉽사리 해결되지는 않겠어요.
It won't be resolved that easily.
그의 의도를 짐작하겠어요.
I can guess his intention.
그것은 논리적으로 맞지 않겠어요.
That wouldn't make logical sense.
그의 노고를 치하하겠어요.
I will commend his hard work.
Easily Confused
Both can express future.
Both express guessing.
Learners use -겠- for others.
Common Mistakes
그가 가겠어요
그가 갈 거예요
먹겠다요
먹겠어요
가다겠어요
가겠어요
안 가다겠어요
안 가겠어요
비가 오겠어요 (as a forecast)
비가 올 거예요
그녀가 하겠어요
그녀가 할 거예요
맛있겠다
맛있겠어요
그가 먹었겠어요 (as a fact)
그가 먹었을 거예요
내가 하겠어 (to a boss)
제가 하겠습니다
그것은 좋겠어
그것은 좋겠어요
그가 가겠다고 생각해요
그가 갈 것이라고 생각해요
그는 하겠어요
그는 할 거예요
그것은 맞겠어요
그것은 맞을 거예요
Sentence Patterns
저는 내일 ___하겠어요.
이것은 정말 ___겠어요.
그 상황이라면 정말 ___겠어요.
제가 ___드리겠어요.
Real World Usage
내일 가겠어!
열심히 하겠습니다.
맛있겠다!
9시에 출발하겠어요.
맛있겠어요.
검토하겠습니다.
First Person Only
Not for Forecasts
Polite Guessing
Formal Promises
Smart Tips
Use -겠어요 for formal promises and -ㄹ 거예요 for general plans.
Use -겠어요 to show empathy.
Use -겠어요 for logical guesses.
Use -겠어요 for polite offers.
Pronunciation
Assimilation
The 'k' sound in -겠- often becomes a tense 'kk' sound when followed by certain consonants.
Rising
가겠어요? ↑
Questioning intent.
Falling
가겠어요. ↓
Stating intent.
Memorize It
Mnemonic
Think of -겠- as a 'Guess' and a 'Goal'. G for Guess, G for Goal (Intent).
Visual Association
Imagine a person pointing at a mountain (Guess: 'That looks high!') and then pointing at their own chest (Goal: 'I will climb it!').
Rhyme
When you have a plan, use 겠. When you make a guess, use 겠.
Story
Min-su looks at the dark clouds. 'It will rain!' (Conjecture). He grabs his umbrella. 'I will go out now!' (Intent).
Word Web
Challenge
Write 3 sentences about your plans for tomorrow and 3 sentences about the weather or your friend's mood.
Cultural Notes
Using -겠- shows a professional attitude and commitment to tasks.
Using -겠- when complimenting food is a sign of good manners.
Using -겠- to acknowledge someone's hardship is very common.
Derived from Middle Korean modal markers indicating volition.
Conversation Starters
오늘 저녁에 뭐 하겠어요?
이 음식이 맛있겠어요?
내일 날씨가 어떨 것 같아요?
이 일을 제가 도와드리겠어요.
Journal Prompts
Common Mistakes
Test Yourself
a) 공부하겠어요 b) 공부해요 c) 공부했다
a) 비가 올 거예요 b) 비가 오겠어요 c) 비가 오다
Find and fix the mistake:
Correct the sentence.
What is the result?
True or False?
Complete B.
What is it?
Match each item on the left with its pair on the right:
Score: /8
Practice Exercises
8 exercisesa) 공부하겠어요 b) 공부해요 c) 공부했다
a) 비가 올 거예요 b) 비가 오겠어요 c) 비가 오다
Find and fix the mistake:
Correct the sentence.
What is the result?
True or False?
Complete B.
What is it?
1. Intent 2. Guess
Score: /8
Practice Bank
10 exercises[최선을 / 하겠습니다 / 다]
Which one is correct?
Match the pairs
어제 많이 ___.
I will go first.
비가 오겠는.
Would you like some coffee?
잘 ___.
[정말 / 춥겠다 / 날씨가]
I'll call you later.
Score: /10
FAQ (8)
No, only for 1st person intent.
Yes, it is polite and professional.
-ㄹ 거예요 is objective; -겠- is subjective.
Yes, for past conjecture.
Yes, but often in casual forms.
The dual meaning can be confusing.
Use '안' or '-지 않겠어요'.
No, it's the same for all.
Scaffolded Practice
1
2
3
4
Mastery Progress
Needs Practice
Improving
Strong
Mastered
In Other Languages
Futuro simple
Korean -겠- is restricted to 1st person intent.
Modal verbs
Korean uses one suffix for both.
Futur simple
Korean -겠- is more subjective.
Volitional form
Japanese volitional is not used for conjecture.
Future prefix sa-
Arabic doesn't use the same marker for guessing.
会 (huì)
Korean -겠- is a suffix, not an auxiliary verb.
Learning Path
Prerequisites
Related Grammar Rules
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