If you are studying Korean grammar gi maryeonida, this lesson is the one to keep. You will learn how -기 마련이다 works in real conversation, when to use it, and the mistakes English speakers make first. This is a Korean advanced grammar guide with examples, romanization, and a five-minute speaking drill.
By the end you should be able to hear -기 마련이다 in dramas and K-talk, then reuse it in your own sentences. Read once. Say the examples out loud. Then drill the same lines on Practice.
What -기 마련이다 means
-기 마련이다 says the result is the natural order of things. People get tired if they skip sleep. Beginners who only study on weekends fall behind. This is advanced Korean for generalizations, not one-off events.
How to form it
- Verb/adjective + -기 마련이다 → 실수하기 마련이다, 어렵기 마련이다
- Often with 누구나, 처음에는, 오래하면
- Past comment on a general truth still uses present 마련이다
- Sibling: -기 십상이다 (liable to — often negative)
-기 마련이다 examples
Use these Korean grammar gi maryeonida example sentences as a speaking list. Korean first, then pronunciation, then English.
| Korean | Pronunciation | English |
|---|---|---|
| 처음에는 실수하기 마련이에요. | cheoeumeneun silsuhagi maryeonieyo. | At first, people are bound to make mistakes. |
| 기다리면 기회는 오기 마련이에요. | gidarimyeon gihoeneun ogi maryeonieyo. | If you wait, a chance is bound to come. |
| 말을 안 하면 오해가 생기기 마련이죠. | mareul an hamyeon ohaega saenggigi maryeonijyo. | If you don’t talk, misunderstandings are bound to happen. |
| 무리하면 아프기 마련이에요. | murihamyeon apeugi maryeonieyo. | If you overdo it, you’re bound to get sick. |
| 사람이 모이면 의견이 다르기 마련이에요. | sarami moimyeon uigyeoni dareugi maryeonieyo. | When people gather, opinions are bound to differ. |
| 오래된 기계는 고장 나기 마련이다. | oraedoen gigyeneun gojang nagi maryeonida. | Old machines are bound to break. |
When to use it
- Comforting someone after a normal failure.
- Essay conclusions.
- Warning about a pattern, not a single prediction.
Common mistakes
These are the traps English speakers hit when they translate word-for-word. Fix the pattern, not just the vocabulary.
Watch-out
❌ 마련이다 for a unique accident
✅ Use 어 버리다 / 는 바람에
마련이다 is the usual pattern of the world.
Watch-out
❌ 기마련이다 spacing
✅ 기 마련이다
마련이다 is a separate bound noun + 이다.
Watch-out
❌ Using it with a named one-time plan
✅ 을 거예요
내일 비가 오기 마련이에요 is odd unless you’re philosophizing about seasons.
Mini dialogue
Read it twice. Second time, cover the English.
| Speaker | Korean | Pronunciation | English |
|---|---|---|---|
| A | 또 발음에서 틀렸어요. 창피해요. | tto bareumeseo teullyeosseoyo. changpihaeyo. | I messed up pronunciation again. I’m embarrassed. |
| B | 외국어는 틀리기 마련이에요. 그래서 늘어요. | oegugeoneun teulligi maryeonieyo. geuraeseo neureoyo. | In a foreign language you’re bound to slip. That’s how you improve. |
| A | 그 말 들으니까 좀 낫네요. | geu mal deureunikka jom nanneyo. | Hearing that helps a bit. |
Don’t mix these up
기 쉽다 is “easy to / likely.” 기 십상이다 is “liable to (and that’s bad).” 기 마련이다 is “that’s the way it goes.”
Five-minute Korean speaking practice
Korean speaking practice beats extra grammar notes. Do this once today, then again tomorrow without looking.
- Read each example slowly, Korean only.
- Say it at natural speed. Record yourself if you can.
- Cover the Korean and rebuild the sentence from English.
- Swap in your own details: your job, your city, your weekend.
Starter lines for today:
- 익숙해지기 전에는 불편하기 마련이에요.
- 비밀은 새기 마련이라는 말도 있어요.
- 미루면 후회하기 마련이에요.
Lesson summary
- Pattern: -기 마련이다
- Search topic: Korean grammar gi maryeonida
- -기 마련이다 states a natural, repeatable outcome. Use it for wisdom, not weather apps.
- Say it out loud on Practice, then come back to Guides if a particle still feels sticky.
Homework
- Write four generalizations about language learning with 기 마련이다.
- Write one 기 십상이다 warning.
- Use one 마련이죠 tag in speech.
Korean grammar gi maryeonida: quick answers
Formality?
Essays and advice. A bit heavy for “the kettle boiled.”
마련 vs 준비?
Different 마련. 준비를 마련하다 is “arrange.” Here 마련이다 is “is bound to.”
Keep going
Want a path, not a single grammar point? Open Learn or browse the rest of this series in Korean advanced.