Learn Hangul Grammer 03

How to Differentiate Between Korean Verbs and Adjectives (동사 vs 형용사)

In Korean grammar, verbs (동사) and adjectives (형용사) are both classified as "용언" (conjugating predicates). That means both change their forms based on tense, mood, and politeness level. However, despite their similar appearance in conjugation, they express different types of meanings and follow some distinct grammatical rules.

Let’s break down how they differ, how to identify them, and how they behave in sentences.

---

1. What Are Verbs and Adjectives in Korean?

■ Verbs (동사)

Verbs describe actions, behaviors, events, or changes in state. They are similar to action verbs in English.

• Examples: 가다 (to go), 먹다 (to eat), 배우다 (to learn), 자다 (to sleep), 걷다 (to walk), 자라다 (to grow)

■ Adjectives (형용사)

Adjectives describe states, qualities, emotions, or characteristics. In Korean, adjectives behave like stative verbs — they function as predicates (like verbs) and also conjugate.

• Examples: 예쁘다 (to be pretty), 길다 (to be long), 춥다 (to be cold), 좋다 (to be good), 슬프다 (to be sad)

---

2. Key Semantic Differences

✔ Change or No Change

• Verbs involve change or movement over time.
• e.g., 아이가 자란다 → “The child grows” (the child changes over time)
• Adjectives describe a fixed state or condition.
• e.g., 꽃이 예쁘다 → “The flower is pretty” (a stable quality)

✔ Commands and Requests

• Verbs can form imperative or suggestive sentences.
• e.g., 가세요 (Please go), 먹자 (Let’s eat)
• Adjectives usually cannot be used in command or suggestion forms.
• e.g., 예쁘세요 (Be pretty) sounds unnatural unless used in fixed expressions like greetings

---

3. Grammatical Differences

✔ Present Tense Modifier: '-는' vs '-은/ㄴ'

• Verbs use -는 to modify nouns in the present tense.
• 예: 가는 사람 → “the person who is going”
• Adjectives use -은/ㄴ even in the present tense.
• 예: 예쁜 꽃 → “a pretty flower”

This is a key pattern:
Verbs: 가다 → 가는
Adjectives: 예쁘다 → 예쁜

✔ Progressive Form: '-고 있다'

• Verbs can use the progressive form '-고 있다' (similar to English "-ing").
• 예: 먹고 있다 → “is eating”
• Adjectives generally do not take this form.
• 예: *예쁘고 있다 → unnatural
• But if the adjective implies a change, it may appear:
• 높아지고 있다 → “is getting taller”

✔ Verb-Adverb Combinations

• Verbs combine naturally with auxiliary (helper) verbs.
• 예: 먹어 보다 (try eating), 가 버리다 (go away completely)
• Adjectives rarely form these kinds of combinations.

---

4. Potential Confusions

Some words look like adjectives but actually behave like verbs, or vice versa.

• 아프다 (to be sick/painful) → Adjective (state)
• 자라다 (to grow) → Verb (involves change)
• 맛있다 (to be delicious) → Adjective

Even though some adjectives describe conditions that can change, they are still classified as 형용사 because they don’t show action.

---

5. Similarities in Conjugation

Both verbs and adjectives follow similar patterns in conjugation:

Tense	Verb Example (먹다)	Adjective Example (예쁘다)
Present	먹는다 / 먹어요	예쁘다 / 예뻐요
Past	먹었다 / 먹었어요	예뻤다 / 예뻤어요
Future	먹겠다 / 먹을 거예요	예쁘겠다 / 예쁠 거예요

So just looking at the endings is not enough — you have to look at meaning and sentence function too.

---

6. How to Teach or Learn the Difference

For English speakers learning Korean, here are some helpful strategies:

✅ Use Actions

Demonstrate verbs with physical movement (eat, run, jump) and show adjectives as descriptions (tall, pretty, sad).

✅ Highlight Sentence Function

Ask: “Is something happening (verb) or being described (adjective)?”

• 그 여자가 걷는다 → Action → Verb
• 그 여자가 예쁘다 → Description → Adjective

✅ Compare Grammar Usage

Use examples to practice:

• 관형사형 (modifier form):
• 가는 사람 vs 예쁜 사람
• 진행형:
• 걷고 있다 vs *예쁘고 있다 (unnatural)

---

7. Summary

Feature	Verb (동사)	Adjective (형용사)
Describes	Action, movement, change	State, quality, emotion
Progressive form	O (e.g., -고 있다)	✕ (generally unnatural)
Commands/Requests	O	✕
Present tense modifier	-는 (가는 사람)	-은/ㄴ (예쁜 사람)
Combine with auxiliaries	O	✕ (usually)

Understanding these differences will help learners use Korean more accurately and sound more natural when speaking or writing.