TL;DR π¦
- -(μΌ)γ turns an action, state, or whole clause into a compact formal fact: λ¬Έμ κ° μμ = there being no problem / no problem.
- Use -μ after most consonant-ending stems and -γ after vowel or γΉ-ending stems: λ¨Ήμ, κ°, μ, λ§λ¦.
- In intermediate Korean, it often appears inside formal frames like -μμ νμΈνλ€, -μμ μ리λ€, -μμ λ³΄κ³ νλ€, and Nμμ λ°νλ€.
π§ Iru Helper Note β Open Korean Helper Widgets and listen to short written-fact chunks like λ¬Έμ κ° μμμ νμΈνμ΅λλ€, μμ½μ΄ μλ£λμμμ μλ € λ립λλ€, κ³νμ΄ λ³κ²½λμμμ λ³΄κ³ νμ΅λλ€, and νμμμ μ¦λͺ
νμ΅λλ€. The grammar is formal, but the rhythm is very reusable. π§
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π The Big Picture
-(μΌ)γ
is a formal nominalizer. It lets Korean take a sentence-like idea and treat it like a noun: a fact, state, result, record, notice item, or report item.
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Think of it as turning:
- βThere is no problem.β
- βThe reservation was completed.β
- βThe plan changed.β
- βThis person is a student.β
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into:
- βthe fact that there is no problemβ
- βthe fact that the reservation was completedβ
- βthe fact that the plan changedβ
- βthe fact that this person is a studentβ
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Examples:
- λ¬Έμ κ° μμμ νμΈνμ΅λλ€.
[mun-je-ga eop-sseu-meul hwa-gin-haet-seum-ni-da]
I confirmed that there is no problem. β
- μμ½μ΄ μλ£λμμμ μλ € λ립λλ€.
[ye-ya-gi wan-nyo-doe-eot-sseu-meul al-lyeo deu-rim-ni-da]
We inform you that the reservation has been completed. π
- κ³νμ΄ λ³κ²½λμμμ λ³΄κ³ νμ΅λλ€.
[gye-hoe-gi byeon-gyeong-doe-eot-sseu-meul bo-go-haet-seum-ni-da]
I reported that the plan had changed. π
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This is not the most casual way to speak. In daily conversation, you usually use -λ κ², -λ€λ κ², or a plain sentence. But for notices, reports, applications, official emails, TOPIK writing, announcements, and formal summaries, -(μΌ)γ
is extremely useful.
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π¨ The Core βActions Become Factsβ Family
1. Verb/adjective stem + -(μΌ)γ
This makes a formal fact or state.
- μλ€ β μμ = existence / there being
- μλ€ β μμ = absence / there not being
- κ°λ₯νλ€ β κ°λ₯ν¨ = being possible
- μ€μνλ€ β μ€μν¨ = being important
- μλ£λλ€ β μλ£λ¨ = being completed
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2. Past fact + -μ/μμ
Use this when the fact is completed or past.
- λλ¬λ€ β λλ¬μ = the fact that it ended
- λ°μλ€ β λ°μμ = the fact that someone received it
- λ³κ²½λμλ€ β λ³κ²½λμμ = the fact that it was changed
- νμΈνλ€ β νμΈνμ = the fact that someone confirmed it
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3. Noun identity + μ
Use Nμ for βbeing N / the fact that it is N.β
- νμ β νμμ = being a student
- μ¬μ€ β μ¬μ€μ = being a fact
- μ€λ₯ β μ€λ₯μ = being an error
- λ³ΈμΈ β λ³ΈμΈμ = being the person themself
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4. Formal object: -μμ
Once -(μΌ)γ
creates a noun-like fact, it can take particles.
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Common frame:
- -μμ νμΈνλ€ = to confirm that...
- -μμ μλ¦¬λ€ = to inform that...
- -μμ λ³΄κ³ νλ€ = to report that...
- -μμ λ°νλ€ = to reveal/state that...
- -μμ μ¦λͺ νλ€ = to prove that...
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Examples:
- μλ£λ₯Ό λ°μμμ νμΈνμ΅λλ€. = I confirmed that I received the materials.
- νμκ° μ·¨μλμμμ μλ € λ립λλ€. = We inform you that the meeting has been canceled.
- μ΄ λ¬Έμκ° μλ³Έμμ μ¦λͺ ν©λλ€. = This proves that this document is the original.
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π οΈ How It Works in Sentences
1. Notice style
- μ€λ μμ μμ.
[o-neul su-eop eop-sseum]
No class today. / There is no class today. π«
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This sounds like a notice board, memo, or checklist. A full polite sentence would be:
- μ€λ μμ μ΄ μμ΄μ. = There is no class today.
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2. Confirmation style
- λ¬Έμ κ° μμμ νμΈνμ΅λλ€.
[mun-je-ga eop-sseu-meul hwa-gin-haet-seum-ni-da]
I confirmed that there is no problem. β
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Here, λ¬Έμ κ° μμ is the βfact,β and μ marks it as the object of νμΈνμ΅λλ€.
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3. Announcement style
- μμ½μ΄ μλ£λμμμ μλ € λ립λλ€.
[ye-ya-gi wan-nyo-doe-eot-sseu-meul al-lyeo deu-rim-ni-da]
We inform you that the reservation has been completed. π
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This sounds polished and service-email-like.
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4. Identity/fact style
- μ΄ μ λ³΄κ° μ¬μ€μμ λ°νμ΅λλ€.
[i jeong-bo-ga sa-si-rim-eul bal-kyeot-seum-ni-da]
They revealed/stated that this information is true. π
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For nouns, use μ, not just the noun alone.
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π§© General Formation Rule
Present/general verb or adjective
Use -μ after most consonant-ending stems.
- λ¨Ήλ€ β λ¨Ήμ
- μ½λ€ β μ½μ
- μλ€ β μμ
- μλ€ β μμ
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Use -γ
after vowel-ending stems.
- κ°λ€ β κ°
- μ€λ€ β μ΄
- νλ€ β ν¨
- λλ€ β λ¨
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Use -γ
after γΉ-ending stems; the spelling compresses.
- μλ€ β μ
- μ΄λ€ β μΆ
- λ§λ€λ€ β λ§λ¦
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Past fact
Add -μ after the past marker -μ/μ-.
- νλ€ β νμ
- λ°μλ€ β λ°μμ
- λλ¬λ€ β λλ¬μ
- λ³κ²½λμλ€ β λ³κ²½λμμ
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Noun identity
Use Nμ.
- νμμ = being a student
- μ€λ₯μ = being an error
- λ³ΈμΈμ = being the person themself
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π¨ Exception Rules and Spelling Notes
γΉ-ending stems
Do not write μμ or λ§λ€μ for this grammar.
- β μ
- β μΆ
- β λ§λ¦
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γ -irregular descriptive verbs
Many γ
-irregular descriptive verbs change before the vowel-starting -μ.
- μ΄λ ΅λ€ β μ΄λ €μ
- μΆ₯λ€ β μΆμ
- 무κ²λ€ β 무거μ
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γ·-irregular verbs
Some γ·-irregular verbs change before vowel-starting endings.
- λ£λ€ β λ€μ
- κ±·λ€ β κ±Έμ can be a lexical noun meaning βstep/walk,β so context matters.
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Past/future-like endings
After -μ/μ- or -κ² -, use -μ.
- νμ
- κ°μ
- νκ² μ
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π Cross-check note
This lesson connects directly to The Fact/Experience: -(μΌ)γ
, Making Nouns for Facts: -λ κ², and The fact that: -(μΌ)γ΄/λ μ¬μ€. The key intermediate upgrade here is using -(μΌ)γ
inside formal frames like -μμ νμΈνμ΅λλ€ and -μμ μ¦λͺ
ν©λλ€.
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πͺ Synonym Alert
-λ κ²
Conversational and flexible. Good for daily βdoingβ¦β or βthe fact thatβ¦β
- μ΄λνλ κ²μ μ€μν΄μ. = Exercising is important.
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-λ€λ μ¬μ€
Explicitly emphasizes βthe fact that...β Useful when the truth itself matters.
- μ΄λμ΄ μ€μνλ€λ μ¬μ€μ μμμ΄μ. = I learned the fact that exercise is important.
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-(μΌ)γ
Compact, formal, report-like.
- μ΄λμ΄ μ€μν¨μ νμΈνμ΅λλ€. = It was confirmed that exercise is important.
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Quick decision box
- Daily conversation β -λ κ²
- Clear fact focus β -λ€λ μ¬μ€
- Formal report/notice β -(μΌ)γ
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β οΈ Pitfalls to Dodge
- β λ¨Ήγ β β λ¨Ήμ.
- β κ°μ β β κ°.
- β μμ β β μ.
- β νμμμ μ¦λͺ νλ€ β β νμμμ μ¦λͺ νλ€.
- β λ¬Έμ κ° μλ€λ νμΈνμ΅λλ€ β β λ¬Έμ κ° μμμ νμΈνμ΅λλ€.
- β οΈ Donβt overuse -(μΌ)γ in casual speech. It can sound like a memo, report, or official notice.
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π Bottom line: -(μΌ)γ
lets you package an action or state as a formal fact. It is the grammar of confirmations, reports, notices, records, and official-sounding statements. πβ¨
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Try this exercise
Instructions
Complete each item with the correct -(μΌ)γ
form. Then check whether the result is a notice-style fact, a formal object, or a noun identity.
1. μλ€ β λ¬Έμ οΌΏοΌΏοΌΏοΌΏ
No problem.
Answer
μμ β λ¬Έμ μμ.
2. μλ£λλ€ β μμ½ μλ£οΌΏοΌΏοΌΏοΌΏ
Reservation completed.
Answer
λ¨ β μμ½ μλ£λ¨.
3. λ°μλ€ β μλ£λ₯Ό λ°μοΌΏοΌΏοΌΏοΌΏ νμΈνμ΅λλ€.
I confirmed that I received the materials.
Answer
μμ β μλ£λ₯Ό λ°μμμ νμΈνμ΅λλ€.
4. μλ€ β λ¬Έμ κ° μοΌΏοΌΏοΌΏοΌΏ μ립λλ€.
We inform you that there is no problem.
Answer
μμ β λ¬Έμ κ° μμμ μ립λλ€.
5. νμ β νμοΌΏοΌΏοΌΏοΌΏ μ¦λͺ
ν©λλ€.
I prove that this person is a student.
Answer
μμ β noun identity uses μ: νμμμ μ¦λͺ
ν©λλ€.
6. λ³κ²½λμλ€ β μΌμ μ΄ λ³κ²½λμοΌΏοΌΏοΌΏοΌΏ λ³΄κ³ νμ΅λλ€.
I reported that the schedule had changed.
Answer
μμ β λ³κ²½λμμμ λ³΄κ³ νμ΅λλ€.
7. μλ€ β οΌΏοΌΏοΌΏοΌΏ
knowing / awareness
Answer
μ.
8. λ§λ€λ€ β οΌΏοΌΏοΌΏοΌΏ
making / having made
Answer
λ§λ¦.
9. β νμμμ νμΈνλ€ β β
οΌΏοΌΏοΌΏοΌΏ
Answer
νμμμ νμΈνλ€.
10. Choose the more formal report-style sentence:
β λ¬Έμ κ° μλ€λ μ¬μ€μ νμΈνμ΄μ.
β‘ λ¬Έμ κ° μμμ νμΈνμ΅λλ€.
Answer
β‘ λ¬Έμ κ° μμμ νμΈνμ΅λλ€. It is more formal and report-like.
Vocabulary Box
- λ¬Έμ β problem
- μμ½ β reservation
- μλ£λλ€ β to be completed
- μλ£ β materials
- νμΈνλ€ β to confirm
- μλ¦¬λ€ β to inform
- μ¦λͺ νλ€ β to prove
- μΌμ β schedule
- λ³κ²½λλ€ β to be changed
- λ³΄κ³ νλ€ β to report
Tip π‘ If the next verb is νμΈνλ€, μ리λ€, or λ³΄κ³ νλ€, -μμ is often a good formal frame.
Want more reps? The Practice Hub below turns actions, states, and identities into formal facts. π
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π― Practice Hub β Turning actions into facts: -(μΌ)γ
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Welcome to the formal-fact workshop. Youβll practice building -(μΌ)γ
, using -μμ in report-style sentences, handling noun identity with μ, and choosing between -λ κ², μ¬μ€, and -(μΌ)γ
.
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π Audio reminder: Use Korean Helper Widgets whenever you want to hear forms like μμμ νμΈνμ΅λλ€, μλ£λμμμ μ립λλ€, and νμμμ μ¦λͺ
ν©λλ€.
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π Instructions: Fill in each blank, read the full sentence aloud, then open the Answer toggle.
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Exercise 1 β Form Builder: -μ, -γ , and μ π§
A. μλ€ β μοΌΏοΌΏοΌΏοΌΏ
Answer
μ β μμ.
B. μλ€ β μοΌΏοΌΏοΌΏοΌΏ
Answer
μ β μμ.
C. κ°λ€ β κ°οΌΏοΌΏοΌΏοΌΏ
Answer
γ
β κ°.
D. μ€λ€ β μ€οΌΏοΌΏοΌΏοΌΏ
Answer
γ
β μ΄.
E. νλ€ β νοΌΏοΌΏοΌΏοΌΏ
Answer
γ
β ν¨.
F. λλ€ β λοΌΏοΌΏοΌΏοΌΏ
Answer
γ
β λ¨.
G. μλ€ β μοΌΏοΌΏοΌΏοΌΏ
Answer
γ
β μ.
H. λ§λ€λ€ β λ§λ€οΌΏοΌΏοΌΏοΌΏ
Answer
γ
β λ§λ¦.
I. νμ β νμοΌΏοΌΏοΌΏοΌΏ
Answer
μ β νμμ.
J. μ€λ₯ β μ€λ₯οΌΏοΌΏοΌΏοΌΏ
Answer
μ β μ€λ₯μ.
Form Box
- Most consonant stems β -μ
- Vowel stems β -γ
- γΉ stems β -γ : μ, λ§λ¦
- Noun identity β μ
Tip π‘ The result acts like a noun, so particles can attach after it.
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Exercise 2 β Notice and Memo Style π
A. μ€λ μμ
οΌΏοΌΏοΌΏοΌΏ.
No class today.
Answer
μμ β μ€λ μμ
μμ.
B. μΆκ° λΉμ© οΌΏοΌΏοΌΏοΌΏ.
No extra cost.
Answer
μμ β μΆκ° λΉμ© μμ.
C. μμ½ μλ£οΌΏοΌΏοΌΏοΌΏ.
Reservation completed.
Answer
λ¨ β μμ½ μλ£λ¨.
D. μ¬μ© κ°λ₯οΌΏοΌΏοΌΏοΌΏ.
Available for use.
Answer
ν¨ β μ¬μ© κ°λ₯ν¨.
E. μΆμ
κΈμ§οΌΏοΌΏοΌΏοΌΏ.
Entry prohibited.
Answer
λ¨ β μΆμ
κΈμ§λ¨.
F. νμ λλ¬οΌΏοΌΏοΌΏοΌΏ.
Meeting ended.
Answer
μ β νμ λλ¬μ.
G. μλ£ λ°μοΌΏοΌΏοΌΏοΌΏ.
Materials received.
Answer
μ β μλ£ λ°μμ.
H. λ³κ²½ μ¬ν μοΌΏοΌΏοΌΏοΌΏ.
There are changes.
Answer
μ β λ³κ²½ μ¬ν μμ.
I. νμΈ μλ£οΌΏοΌΏοΌΏοΌΏ.
Confirmation completed.
Answer
λ¨ β νμΈ μλ£λ¨.
J. μ°Έμ κ°λ₯οΌΏοΌΏοΌΏοΌΏ.
Attendance possible.
Answer
ν¨ β μ°Έμ κ°λ₯ν¨.
Vocabulary Box
- μμ β class
- μΆκ° λΉμ© β extra cost
- μμ½ β reservation
- μ¬μ© β use
- κ°λ₯νλ€ β to be possible
- μΆμ β entry
- κΈμ§λλ€ β to be prohibited
- λ³κ²½ μ¬ν β changes
- μ°Έμ β attendance
Tip π‘ Notice style often drops polite endings and uses compact written facts.
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Exercise 3 β Formal Object Frame: -μμ ποΈ
A. λ¬Έμ κ° μοΌΏοΌΏοΌΏοΌΏ νμΈνμ΅λλ€.
I confirmed that there is no problem.
Answer
μμ β λ¬Έμ κ° μμμ νμΈνμ΅λλ€.
B. μλ£λ₯Ό λ°μοΌΏοΌΏοΌΏοΌΏ νμΈνμ΅λλ€.
I confirmed that I received the materials.
Answer
μμ β μλ£λ₯Ό λ°μμμ νμΈνμ΅λλ€.
C. νμκ° λλ¬οΌΏοΌΏοΌΏοΌΏ λ³΄κ³ νμ΅λλ€.
I reported that the meeting ended.
Answer
μμ β νμκ° λλ¬μμ λ³΄κ³ νμ΅λλ€.
D. μμ½μ΄ μλ£λμοΌΏοΌΏοΌΏοΌΏ μλ € λ립λλ€.
We inform you that the reservation has been completed.
Answer
μμ β μμ½μ΄ μλ£λμμμ μλ € λ립λλ€.
E. κ³νμ΄ λ³κ²½λμοΌΏοΌΏοΌΏοΌΏ μ립λλ€.
We inform you that the plan has changed.
Answer
μμ β κ³νμ΄ λ³κ²½λμμμ μ립λλ€.
F. μΆκ° λΉμ©μ΄ μοΌΏοΌΏοΌΏοΌΏ μλ΄νμ΅λλ€.
I explained that there is no extra cost.
Answer
μμ β μΆκ° λΉμ©μ΄ μμμ μλ΄νμ΅λλ€.
G. λ¬Έμ΄ μ΄λ € μοΌΏοΌΏοΌΏοΌΏ νμΈνμ΅λλ€.
I confirmed that the door is open.
Answer
μμ β λ¬Έμ΄ μ΄λ € μμμ νμΈνμ΅λλ€.
H. μ νμ΄ μλνοΌΏοΌΏοΌΏοΌΏ νμΈνμ΅λλ€.
I confirmed that the product works.
Answer
γ
μ β μ νμ΄ μλν¨μ νμΈνμ΅λλ€.
I. μ μ²μ΄ μ μλμοΌΏοΌΏοΌΏοΌΏ μλ € λ립λλ€.
We inform you that the application has been received.
Answer
μμ β μ μ²μ΄ μ μλμμμ μλ € λ립λλ€.
J. κ²°κ³Όκ° λ¬λΌμ‘οΌΏοΌΏοΌΏοΌΏ λ³΄κ³ νμ΅λλ€.
I reported that the result had changed.
Answer
μμ β κ²°κ³Όκ° λ¬λΌμ‘μμ λ³΄κ³ νμ΅λλ€.
Formal Frame Box
- -μμ νμΈνλ€ β confirm that...
- -μμ μλ¦¬λ€ β inform that...
- -μμ λ³΄κ³ νλ€ β report that...
- -μμ μλ΄νλ€ β explain/guide that...
Tip π‘ The particle μ attaches because the whole fact is the object.
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Exercise 4 β Noun Identity: Nμμ πͺͺ
A. νμ β νμοΌΏοΌΏοΌΏοΌΏ μ¦λͺ
νμ΅λλ€.
I proved that this person is a student.
Answer
μμ β νμμμ μ¦λͺ
νμ΅λλ€.
B. λ³ΈμΈ β λ³ΈμΈοΌΏοΌΏοΌΏοΌΏ νμΈνμ΅λλ€.
I confirmed that this person is the person themself.
Answer
μμ β λ³ΈμΈμμ νμΈνμ΅λλ€.
C. μ¬μ€ β μ¬μ€οΌΏοΌΏοΌΏοΌΏ λ°νμ΅λλ€.
They revealed that it is true / a fact.
Answer
μμ β μ¬μ€μμ λ°νμ΅λλ€.
D. μ€λ₯ β μ€λ₯οΌΏοΌΏοΌΏοΌΏ νμΈνμ΅λλ€.
I confirmed that it is an error.
Answer
μμ β μ€λ₯μμ νμΈνμ΅λλ€.
E. νμ μ¬ν β νμ μ¬νοΌΏοΌΏοΌΏοΌΏ μλ΄νμ΅λλ€.
I explained that it is a required item.
Answer
μμ β νμ μ¬νμμ μλ΄νμ΅λλ€.
F. μ μ€μ β μ μ€μοΌΏοΌΏοΌΏοΌΏ μΈμ νμ΅λλ€.
I admitted that it was my mistake.
Answer
μμ β μ μ€μμμ μΈμ νμ΅λλ€.
G. μ λ΅ β μ λ΅οΌΏοΌΏοΌΏοΌΏ νμΈνμ΅λλ€.
I confirmed that it is the correct answer.
Answer
μμ β μ λ΅μμ νμΈνμ΅λλ€.
H. μ€μν λ¬Έμ β μ€μν λ¬Έμ οΌΏοΌΏοΌΏοΌΏ μκ² λμ΅λλ€.
I came to know that it is an important issue.
Answer
μμ β μ€μν λ¬Έμ μμ μκ² λμ΅λλ€.
I. β μ€λ₯μμ νμΈνμ΅λλ€ β β
οΌΏοΌΏοΌΏοΌΏ
Answer
μ€λ₯μμ νμΈνμ΅λλ€.
J. β νμμμ μ¦λͺ
νμ΅λλ€ β β
οΌΏοΌΏοΌΏοΌΏ
Answer
νμμμ μ¦λͺ
νμ΅λλ€.
Identity Box
- Noun + μ = being N
- Noun + μμ = the fact that it is N
- Use with νμΈνλ€, μ¦λͺ νλ€, λ°νλ€, μΈμ νλ€.
Tip π‘ If the base is already a noun, do not add μ. Use μ.
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Exercise 5 β Mixed Mastery + Pitfall Patrol π‘οΈ
A. β κ°μ β β
οΌΏοΌΏοΌΏοΌΏ
Answer
κ°.
B. β λ¨Ήγ
β β
οΌΏοΌΏοΌΏοΌΏ
Answer
λ¨Ήμ.
C. β μμ β β
οΌΏοΌΏοΌΏοΌΏ
Answer
μ.
D. β λ§λ€μ β β
οΌΏοΌΏοΌΏοΌΏ
Answer
λ§λ¦.
E. β μ΄λ ΅μ β β
οΌΏοΌΏοΌΏοΌΏ
Answer
μ΄λ €μ.
F. Choose the formal notice style:
β μ€λ μμ
μ΄ μμ΄μ.
β‘ μ€λ μμ
μμ.
Answer
β‘ μ€λ μμ
μμ.
G. Choose the formal report style:
β λ¬Έμ κ° μμμ νμΈνμ΅λλ€.
β‘ λ¬Έμ κ° μλ κ²μ νμΈνμ΄μ.
Answer
β λ¬Έμ κ° μμμ νμΈνμ΅λλ€..
H. Choose the noun identity form:
β νμμμ μ¦λͺ
νμ΅λλ€.
β‘ νμμμ μ¦λͺ
νμ΅λλ€.
Answer
β νμμμ μ¦λͺ
νμ΅λλ€..
I. Make this formal: μμ½μ΄ μλ£λλ€λ μ¬μ€μ μλ € λ립λλ€.
Answer
μμ½μ΄ μλ£λμμμ μλ € λ립λλ€.
J. -(μΌ)γ
works best when the style is:
Answer
Formal, written, notice-like, report-like, or official.
Final Check
- μλ€ β μμ
- νλ€ β ν¨
- λλ€ β λ¨
- μλ€ β μ
- λ§λ€λ€ β λ§λ¦
- νμ β νμμ
Tip π‘ For polished written Korean, practice chunks: -μμ νμΈνμ΅λλ€, -μμ μλ € λ립λλ€, -μμ μ¦λͺ
ν©λλ€.
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π You finished the -(μΌ)γ
formal-fact workout. Now you can read and write compact Korean report phrases like λ¬Έμ μμ, μμ½ μλ£λ¨, λ¬Έμ κ° μμμ νμΈνμ΅λλ€, and νμμμ μ¦λͺ
ν©λλ€. πβ¨