Key Facts
- Hangul: 변하다 (byeonhada)
- Meaning: to change (by itself)
- Level: B1
- Stem: 변하
- Conjugation class: 하다 type
- Object marking: intransitive
What Does 변하다 Mean?
변하다 means that something becomes different by itself: 날씨가 변하다 (the weather changes), 마음이 변하다 (someone's feelings change). The changing thing is the subject with 이/가, and no object is used.
Use it to focus on something becoming different, rather than on someone changing an object. It often comes with adverbs of degree: 많이 (a lot), 완전히 (completely) and 점점 (little by little). Typical subjects are 마음 (heart, feelings), 날씨 (weather) and 모습 (appearance), as well as places and people, as in 서울은 많이 변했어요.
A common personal use is about people's feelings. 마음이 변하다 says that someone's heart or attitude has changed, and it can sound regretful in a story about love fading. When you change your plans on purpose, a person is acting, so switch to 바꾸다.
How Do You Pronounce 변하다?
How Do You Use 변하다 in a Sentence?
서울은 많이 변했어요.
Seoul has changed a lot.
많이 means a lot; 서울은 is the topic.
사람은 쉽게 변하지 않아요.
People do not change easily.
쉽게 means easily, and the long negative 변하지 않아요 states a general truth.
날씨가 변하면 알려 주세요.
Please tell me if the weather changes.
The conditional 변하면 (if it changes) sets up a polite request.
How Does Byeonhada Conjugation Work?
변하다 is a 하다 verb, so 하 and 여 contract to 해 and give 변해요 and 변했어요. Consonant endings keep 하: 변합니다, 변하세요, 변하는. The long negative is 변하지 않아요.
변하다
| Form | Korean | Romanization | Rule |
|---|---|---|---|
| Polite present | 변해요 | ||
| Polite past | 변했어요 | ||
| Polite future (plan) | 변할 거예요 | ||
| Polite future (intention or guess) | 변하겠어요 | ||
| Formal present | 변합니다 | ||
| Formal past | 변했습니다 | ||
| Formal future | 변할 것입니다 | ||
| Casual present | 변해 | ||
| Casual past | 변했어 | ||
| Casual future | 변할 거야 | ||
| Want to (polite) | 변하고 싶어요 | ||
| Honorific polite | 변하세요 | ||
| Because / and then | 변해서 | ||
| If (conditional) | 변하면 | ||
| Present modifier (before a noun) | 변하는 | ||
| Past modifier (before a noun) | 변한 | ||
| Future modifier (before a noun) | 변할 | ||
| Negative with 안 (short) | 안 변해요 | ||
| Negative (long form) | 변하지 않아요 |
Sound Changes
| Form | Korean | Sounds like |
|---|---|---|
| Polite past | 변했어요 | [변해써요] |
| Polite future (plan) | 변할 거예요 | [변할꺼예요] |
| Polite future (guess) | 변하겠어요 | [변하게써요] |
| Formal present | 변합니다 | [변함니다] |
| Formal past | 변했습니다 | [변핻씀니다] |
| Formal future | 변할 것입니다 | [변할꺼심니다] |
| Casual past | 변했어 | [변해써] |
| Casual future | 변할 거야 | [변할꺼야] |
| Want to (polite) | 변하고 싶어요 | [변하고 시퍼요] |
| Long negative | 변하지 않아요 | [변하지 아나요] |
Common Mistake
Wrong: ✗ 저는 마음을 변해요.
Correct: ✓ 제 마음이 변해요.
Why: 변하다 is intransitive, so the changing thing is the subject (이/가), not an object (을/를). English "I change my mind" puts "mind" as an object; in Korean the feelings themselves change.
How It Differs from Similar Words
| Word | How to tell it from 변하다 |
|---|---|
| 바꾸다 | 바꾸다 is done to something by someone (takes 을/를); 변하다 describes the changing thing as the subject. |
| 나빠지다 | 나빠지다 means getting worse; 변하다 only says it becomes different. |
Returning to an Old Neighbourhood
Two friends visit a neighbourhood where one of them used to live. They compare the streets with their memories and wonder about its future.
Jisu
이 동네는 많이 변했어요.
I dongneneun mani byeonhaesseoyo.
This neighbourhood has changed a lot.
Alex
네. 동네가 계속 변해요.
Ne. Dongnega gyesok byeonhaeyo.
Yes. The neighbourhood keeps changing.
Jisu
앞으로도 변할 거예요.
Apeurodo byeonhal geoyeyo.
It will change in the future too.
Alex
그래도 여기가 좋아요.
Geuraedo yeogiga joayo.
Still, I like it here.
변했어요 compares the current neighbourhood with an earlier version. 변해요 describes continuing change, and 변할 거예요 predicts more change. The future form is a prediction here; nobody is announcing a personal plan to change the neighbourhood. 많이 measures the amount of change without saying whether it was good.
Which Combinations Show What Has Changed?
마음이 변하다 means that someone’s feelings, attitude or intention changes. The literal “heart changes” can concern romance, but it can also concern wanting to join a trip or accepting an offer. A regretful tone comes from the situation; the verb itself does not say that the change was unwanted.
색이 변하다 means that a colour changes. This fits fading fabric, a leaf changing colour or a liquid becoming a different shade. The colour is the subject. With 표정이 변하다, a facial expression changes: the person might become serious, relieved or surprised. You need more context to know which.
세상이 변하다 means “the world changes.” It appears in conversations about technology, lifestyles and differences between generations. It is broader than describing a single replacement. 점점 변하다 highlights change by degrees, while 갑자기 변하다 highlights a sudden change. 변하다 can describe either speed.
Where Will You Hear 변하다?
In dramas, 변하다 often appears when characters notice a change in someone’s feelings or behaviour. In everyday conversation, it can describe a friend’s appearance or a familiar street. Travel stories use it to compare a place now with the speaker’s memory of it.
News and documentaries may use 변화, the noun “change,” when discussing society or the environment. 변화 and 변하다 belong together in meaning, but 변화하다 is a separate verb; you cannot insert 화 into every form of 변하다. Keep the entry’s stem 변하 when building 변해요 or 변합니다.
A comment about a person changing can sound warm, disappointed or accusing depending on tone and context. 변했어요 alone leaves that judgment open. If you mean “got better,” 좋아지다 states the positive direction; 나빠지다 states a negative direction. Neutral 변하다 only reports a difference.
What Does “Changes by Itself” Really Mean?
“By itself” is a shortcut for the sentence pattern: 변하다 presents the changing thing as its subject. It does not prove there was no outside cause. A colour can change because of sunlight, and a city can change because people build things. The verb focuses on the result in that thing rather than naming an object that someone acts on.
Likewise, 변하고 싶어요 means “I want to change.” The person can intend to become different. What 변하다 does not do is take another thing as its direct object. Use 바꾸다 when someone changes a schedule, a setting or another object.
The negative also needs care. Use 안 변해요 with 안 before the complete verb. Although 변하다 follows the 하다 conjugation pattern, 변 is not an independent action noun like 청소 in 청소하다. The long negative 변하지 않아요 avoids that spacing choice and is already shown in the examples.
Words for Describing a Change
| Word | Meaning | Useful connection |
|---|---|---|
| 마음 | feelings; mind | A common subject in personal conversations. |
| 모습 | appearance; look | The visible way a person or place has changed. |
| 표정 | facial expression | A change you can notice during a conversation. |
| 색 | colour | A concrete subject for a physical change. |
| 변화 | change | The noun common in reports and broader discussions. |
The emotions vocabulary lesson gives words for the feelings behind changes in 마음 and 표정.
Mini Drill: Describe the Changing Thing
- Complete “My feelings change”: 제 마음___ 변해요. Choose 이 or 을.
- Put 서울은 많이 변해요 into polite past.
- Choose “if it changes”: 변해서 or 변하면.
- Give the short negative of 변해요.
Show the change answers
- 제 마음이 변해요. 마음 is the subject.
- 서울은 많이 변했어요.
- 변하면. 변해서 links a change to a reason or following event.
- 안 변해요. Keep 안 before the whole verb.
Quick Self-Test
- Does 변하다 always mean a gradual change?
- Which verb needs an object when someone changes a plan: 변하다 or 바꾸다?
- Does 많이 변했어요 say that something improved?
Show answers
- No. 갑자기 can describe a sudden change.
- 바꾸다.
- No. It says there was a lot of change; the context supplies the judgment.
Frequently Asked Questions
Can 변하다 Take an Object?
No. It is intransitive, so the changing thing takes 이/가. When a person changes something, use 바꾸다 with 을/를.
Which Words Often Go with 변하다?
Adverbs such as 많이 (a lot), 완전히 (completely) and 점점 (little by little), and subjects such as 마음, 날씨 and 모습.
How Do I Say "People Don't Change Easily"?
사람은 쉽게 변하지 않아요, using the long negative 변하지 않아요.
What Is the Difference between 변하다 and 바꾸다?
변하다 is something changing by itself (날씨가 변해요). 바꾸다 is someone changing something, with an object in 을/를.
Which Words Are Related to 변하다?
What Should You Learn Next?
Compare 좋아지다, 나빠지다 and 커지다, which also describe gradual change. The conjugation rule is in 하다 to 해요, negatives are covered in negating 하다 verbs, any form can be checked in the Korean verb conjugator, and the full list is in the Korean verb dictionary.