Grouping the Complex Vowels by Shape
The complex vowels can be organized into four visual groups.
Group 1 — Vertical Vowels
These vowels are written vertically, so the initial consonant appears on the left.
Examples:
ㄱ + ㅐ → 개
ㄱ + ㅒ → 걔
ㄱ + ㅔ → 게
ㄱ + ㅖ → 계
Group 2 — Vowels Beginning with ㅗ
ㅘ = ㅗ + ㅏ
ㅙ = ㅗ + ㅐ
ㅚ = ㅗ + ㅣ
Examples:
Group 3 — Vowels Beginning with ㅜ
ㅝ = ㅜ + ㅓ
ㅞ = ㅜ + ㅔ
ㅟ = ㅜ + ㅣ
Examples:
Group 4 — Vowel Beginning with ㅡ
Example:
Complete Formation Review
Vertical-Vowel Group
ㅏ + ㅣ = ㅐ
ㅑ + ㅣ = ㅒ
ㅓ + ㅣ = ㅔ
ㅕ + ㅣ = ㅖ
ㅗ-Based Group
ㅗ + ㅏ = ㅘ
ㅗ + ㅐ = ㅙ
ㅗ + ㅣ = ㅚ
ㅜ-Based Group
ㅜ + ㅓ = ㅝ
ㅜ + ㅔ = ㅞ
ㅜ + ㅣ = ㅟ
ㅡ-Based Group
Formation Practice
Complete the combinations:
ㅏ + ㅣ = ___
ㅑ + ㅣ = ___
ㅓ + ㅣ = ___
ㅕ + ㅣ = ___
ㅗ + ㅏ = ___
ㅗ + ㅐ = ___
ㅗ + ㅣ = ___
ㅜ + ㅓ = ___
ㅜ + ㅔ = ___
ㅜ + ㅣ = ___
ㅡ + ㅣ = ___
Answers
ㅐ
ㅒ
ㅔ
ㅖ
ㅘ
ㅙ
ㅚ
ㅝ
ㅞ
ㅟ
ㅢ
Silent ㅇ Review
A Korean syllable block must begin with a consonant symbol. When a syllable begins with a vowel sound, silent ㅇ is added.
Vowel | Combination | Complete syllable |
|---|
ㅐ | ㅇ + ㅐ | 애 |
ㅒ | ㅇ + ㅒ | 얘 |
ㅔ | ㅇ + ㅔ | 에 |
ㅖ | ㅇ + ㅖ | 예 |
ㅘ | ㅇ + ㅘ | 와 |
ㅙ | ㅇ + ㅙ | 왜 |
ㅚ | ㅇ + ㅚ | 외 |
ㅝ | ㅇ + ㅝ | 워 |
ㅞ | ㅇ + ㅞ | 웨 |
ㅟ | ㅇ + ㅟ | 위 |
ㅢ | ㅇ + ㅢ | 의 |
At the beginning of these syllables, ㅇ has no sound.
Basic Sound and Mouth-Movement Review
Vowel | Syllable | Basic sound | Main mouth movement |
|---|
ㅐ | 애 | ae/e | relaxed, slightly open |
ㅒ | 얘 | yae/ye | brief y movement into ㅐ/ㅔ |
ㅔ | 에 | e | relaxed front vowel |
ㅖ | 예 | ye | brief y movement into ㅔ |
ㅘ | 와 | wa | rounded lips moving toward ㅏ |
ㅙ | 왜 | wae/we | rounded lips moving toward ㅐ/ㅔ |
ㅚ | 외 | oe/we | traditionally rounded front vowel; commonly we-like |
ㅝ | 워 | wo | rounded lips moving toward ㅓ |
ㅞ | 웨 | we | rounded lips moving toward ㅔ |
ㅟ | 위 | wi | rounded lips moving toward ㅣ |
ㅢ | 의 | ui | unrounded ㅡ position moving toward ㅣ |
Important Principle
Every complex vowel belongs inside one syllable.
Do not separate:
애 into 아-이
예 into 여-이
와 into 오-아
왜 into 오-애
워 into 우-어
웨 into 우-에
위 into 우-이
의 into 으-이
Review of ㅐ and ㅔ
The vowels ㅐ and ㅔ have different spellings and historical pronunciations.
Vowel | Syllable | Formation | Traditional sound |
|---|
ㅐ | 애 | ㅏ + ㅣ | [ɛ] |
ㅔ | 에 | ㅓ + ㅣ | [e] |
Modern Pronunciation
Many modern Korean speakers pronounce ㅐ and ㅔ identically or nearly identically.
Compare:
애 — 에
개 — 게
내 — 네
새 — 세
배 — 베
Spelling Principle
Even when the sounds are alike, the spellings cannot be exchanged.
Correct word | Meaning |
|---|
개 | dog |
게 | crab; thing, depending on context |
내 | my; inside |
네 | yes; your |
새 | bird; new |
세 | three; strong, depending on context |
배 | pear; boat; stomach |
베개 | pillow |
Learn the correct vowel as part of each word.
Review of ㅒ and ㅖ
Vowel | Syllable | Formation | Stroke direction |
|---|
ㅒ | 얘 | ㅑ + ㅣ | two short strokes pointing right |
ㅖ | 예 | ㅕ + ㅣ | two short strokes pointing left |
Traditional Pronunciation
Modern Pronunciation
These vowels are often pronounced identically or nearly identically.
Compare:
Meaning and Spelling
얘 — this child; this person
걔 — that child; that person
쟤 — that child or person over there
예 — yes; example
예약 — reservation
계절 — season
Memory Guide
Special Pronunciation Review: ㅖ
The basic pronunciation of ㅖ is [je].
However, in syllables other than 예 and 례, standard pronunciation may allow ㅖ to be pronounced like ㅔ.
Written word | Careful pronunciation | Common allowed pronunciation |
|---|
시계 | 시계 | 시게 |
세계 | 세계 | 세게 |
계획 | 계획 | 게획 |
계절 | 계절 | 게절 |
혜택 | 혜택 | 헤택 |
폐 | 폐 | 페 |
Preserve the Y Sound in 예 and 례
Examples:
Spelling Rule
Even if 시계 sounds like 시게, write:
시계
Even if 혜택 sounds like 헤택, write:
혜택
Review of the ㅗ-Based Vowels
Vowel | Formation | Syllable | Basic sound |
|---|
ㅘ | ㅗ + ㅏ | 와 | wa |
ㅙ | ㅗ + ㅐ | 왜 | wae/we |
ㅚ | ㅗ + ㅣ | 외 | oe/we |
Visual Difference
ㅘ contains ㅏ on the right.
ㅙ contains ㅐ on the right.
ㅚ contains ㅣ on the right.
Sound Difference
Review of ㅙ, ㅚ and ㅞ
These three vowels have different spellings but often have the same or nearly the same pronunciation.
Vowel | Formation | Syllable | Romanization |
|---|
ㅙ | ㅗ + ㅐ | 왜 | wae |
ㅚ | ㅗ + ㅣ | 외 | oe |
ㅞ | ㅜ + ㅔ | 웨 | we |
Modern Sound
All three may sound close to:
[we]
Vocabulary Comparison
Spelling | Example | Meaning |
|---|
ㅙ | 왜 | why |
ㅙ | 돼지 | pig |
ㅙ | 괜찮아요 | it is okay |
ㅚ | 외국 | foreign country |
ㅚ | 회사 | company |
ㅚ | 최고 | the best |
ㅞ | 웨이터 | waiter |
ㅞ | 웹사이트 | website |
ㅞ | 스웨터 | sweater |
Essential Rule
Sound alone may not reveal the spelling. Use:
Review of the ㅜ-Based Vowels
Vowel | Formation | Syllable | Basic sound |
|---|
ㅝ | ㅜ + ㅓ | 워 | wo |
ㅞ | ㅜ + ㅔ | 웨 | we |
ㅟ | ㅜ + ㅣ | 위 | wi |
Some comparison forms are uncommon, but they help demonstrate the vowel shapes.
Mouth Movement
ㅝ: rounded lips → ㅓ
ㅞ: rounded lips → ㅔ
ㅟ: rounded lips → ㅣ
Visual Difference
ㅝ contains ㅓ
ㅞ contains ㅔ
ㅟ contains ㅣ
Review of ㅘ and ㅝ
Both vowels begin with rounded lips but end differently.
Vowel | Formation | Syllable | Ending sound |
|---|
ㅘ | ㅗ + ㅏ | 와 | ㅏ |
ㅝ | ㅜ + ㅓ | 워 | ㅓ |
Vocabulary Comparison
Do not confuse the open ㅏ ending of ㅘ with the ㅓ ending of ㅝ.
Review of ㅚ and ㅟ
Both vowels include ㅣ, but their first components differ.
Vowel | Formation | Syllable | Modern pronunciation |
|---|
ㅚ | ㅗ + ㅣ | 외 | commonly we-like |
ㅟ | ㅜ + ㅣ | 위 | wi |
Vocabulary Comparison
Word | Meaning |
|---|
외국 | foreign country |
위 | above; stomach |
괴물 | monster |
귀 | ear |
회사 | company |
위험 | danger |
회의 | meeting |
쉬다 | to rest |
The pronunciation of ㅚ often begins with a w-like movement, but it should not be confused with ㅟ.
Special Pronunciation Review: ㅢ
The careful pronunciation of ㅢ is approximately [ɰi].
Its pronunciation changes according to position and function.
Environment | Pronunciation | Example |
|---|
Word-initial 의 | careful 의 | 의사, 의자, 의미 |
After another consonant | 이 | 희망 → 히망 |
Non-initial 의 | 의 or 이 | 회의 → 회의/회이 |
Possessive particle 의 | 의 or 에 | 나의 → 나의/나에 |
After a Consonant
희망 → 히망
희다 → 히다
흰색 → 힌색
무늬 → 무니
띄다 → 띠다
Non-Initial 의
주의 → 주의 or 주이
회의 → 회의 or 회이
정의 → 정의 or 정이
동의 → 동의 or 동이
거의 → 거의 or 거이
Possessive 의
The spelling always remains ㅢ.
Complete Shape Comparison
Vowel | Main visual clue |
|---|
ㅐ | one short stroke pointing right plus a second vertical line |
ㅒ | two short strokes pointing right plus a second vertical line |
ㅔ | one short stroke pointing left plus a second vertical line |
ㅖ | two short strokes pointing left plus a second vertical line |
ㅘ | ㅗ below-left with ㅏ on the right |
ㅙ | ㅗ below-left with ㅐ on the right |
ㅚ | ㅗ below-left with ㅣ on the right |
ㅝ | ㅜ above-left with ㅓ on the right |
ㅞ | ㅜ above-left with ㅔ on the right |
ㅟ | ㅜ above-left with ㅣ on the right |
ㅢ | ㅡ below-left with ㅣ on the right |
Stroke-Order Review
ㅐ
Write the complete ㅏ component and then the additional ㅣ.
ㅒ
Write the complete ㅑ component and then the additional ㅣ.
ㅔ
Write the complete ㅓ component and then the additional ㅣ.
ㅖ
Write the complete ㅕ component and then the additional ㅣ.
ㅘ, ㅙ and ㅚ
Write the complete ㅗ component first. Then write the second component on the right:
ㅝ, ㅞ and ㅟ
Write the complete ㅜ component first. Then write the second component on the right:
ㅢ
Write ㅡ first and ㅣ second.
Writing Principle
Write each component in its normal stroke order while keeping the completed vowel compact and balanced.
Syllable-Block Structure Review
Vertical Complex Vowels
With ㅐ, ㅒ, ㅔ, and ㅖ, the consonant appears on the left.
Examples:
Mixed Horizontal-Vertical Vowels
With ㅘ, ㅙ, ㅚ, ㅝ, ㅞ, ㅟ, and ㅢ:
The initial consonant occupies the upper-left area.
The horizontal component appears below it.
The vertical component appears on the right.
Examples:
With a Final Consonant
The final consonant is placed at the bottom of the syllable block.
Examples:
괜 = ㄱ + ㅙ + ㄴ
원 = ㅇ + ㅝ + ㄴ
된 = ㄷ + ㅚ + ㄴ
흰 = ㅎ + ㅢ + ㄴ
Essential Vocabulary Review
Vowel | Example words |
|---|
ㅐ | 개, 내일, 새, 배, 학생 |
ㅒ | 얘, 걔, 쟤 |
ㅔ | 네, 가게, 세수, 문제, 베개 |
ㅖ | 예, 시계, 계획, 계절, 예약, 혜택 |
ㅘ | 과자, 사과, 과일, 전화, 영화, 화장실 |
ㅙ | 왜, 돼요, 돼지, 괜찮아요, 인쇄 |
ㅚ | 외국, 회사, 괴물, 최고, 퇴근, 회의 |
ㅝ | 원, 원하다, 권, 추워요, 더워요, 줘요 |
ㅞ | 웨이터, 웹사이트, 스웨터 |
ㅟ | 위, 귀, 뒤, 쉬다, 쥐, 취미, 위험 |
ㅢ | 의자, 의사, 의미, 주의, 희망, 무늬 |
Reading Challenge
Read without romanization:
내일 회사에서 중요한 회의가 있어요.
왜 외국어를 공부해요?
친구와 영화를 보고 과자를 먹어요.
추운 날에는 따뜻한 스웨터를 입어요.
이 의자의 무늬가 정말 예뻐요.
Important Grammar and Word-Formation Review
와/과 — And or With
Examples:
오다 → 와요
오 + 아요 → 와요
보다 → 봐요
보 + 아요 → 봐요
되다 → 돼요
되어요 → 돼요
뵈다 → 봬요
뵈어요 → 봬요
주다 → 줘요
주어요 → 줘요
Possessive 의
돼 and 되 Review
Use 돼 When 되어 Works
Correct form | Expanded form |
|---|
돼요 | 되어요 |
돼서 | 되어서 |
됐어요 | 되었어요 |
Use 되 Before Other Endings
Correct and Incorrect Forms
Incorrect | Correct |
|---|
되요 | 돼요 |
안되요 | 안 돼요 |
됬어요 | 됐어요 |
돼면 | 되면 |
돼고 | 되고 |
Practice
이렇게 하면 ___요.
준비가 ___면 시작해요.
일이 잘 ___고 있어요.
벌써 다 ___었어요.
여기에서 뛰면 안 ___요.
Answers
돼요
되면
되고
되었어요 or 됐어요
돼요
봐요, 봬요 and 뵈어요 Review
Form | Source | Meaning |
|---|
봐요 | 보아요 | see; watch; look |
봬요 | 뵈어요 | see or meet someone honorifically |
뵈어요 | uncontracted form | see or meet honorifically |
Examples
Incorrect Form
뵈요
Correct Forms
Replacement Test
If 뵈어요 works, the contraction is 봬요.
왠지 and 웬 Review
왠지
Use 왠지 to mean:
Example:
오늘은 왠지 기분이 좋아요.
For some reason, I feel good today.
웬
Use 웬 before a noun to express surprise or ask what kind of unexpected thing it is.
Examples:
Correct and Incorrect
Incorrect | Correct |
|---|
웬지 | 왠지 |
왠 일이에요? | 웬일이에요? |
와요, 워요 and 워요-Containing Forms
와요
From 오다:
오다 → 와요
줘요
From 주다:
주어요 → 줘요
추워요
From 춥다:
춥다 → 추워요
더워요
From 덥다:
덥다 → 더워요
Important Distinction
Common Beginner Mistakes
Mistake 1 — Separating a Complex Vowel
Incorrect:
오-아 for 와
우-어 for 워
으-이 for 의
Correct:
Mistake 2 — Assuming Similar Sounds Have the Same Spelling
These pairs and groups may sound alike:
ㅐ and ㅔ
ㅒ and ㅖ
ㅙ, ㅚ, and ㅞ
Their spellings must still be learned separately.
Mistake 3 — Writing 되요
Incorrect:
되요
Correct:
돼요
Mistake 4 — Writing 됬어요
Incorrect:
됬어요
Correct:
됐어요
Mistake 5 — Writing 돼면 or 돼고
Incorrect:
Correct:
Mistake 6 — Confusing 봐요 and 봬요
봐요 — see; watch
봬요 — see you, honorific
Mistake 7 — Writing 웬지
Incorrect:
웬지
Correct:
왠지
Mistake 8 — Changing Spelling to Match Pronunciation
Pronunciation:
Correct spelling:
Mistake 9 — Confusing ㅟ and ㅢ
Mistake 10 — Depending Only on Romanization
Romanization cannot reliably distinguish all modern Korean vowel sounds. Learn the Hangul spelling directly.