โ ๏ธDisclaimer: I got this info from the lingodeer website. ๐ฉthis is a very complicated concept in Korean and you will not learn it in one sitting. It comes to you with lots and lots of exposure and practice. I'm still not the best at it myself after studying for years, but I've noticed that I can just feel when it seems good or weird to use one over the other. After lots of exposure to the language you start to naturally know when It's best to use one over the other.
Subject Marking Particles ์ด/๊ฐย ย
To sum it up, ์ด and ๊ฐ are used to denote the subject of a sentence.ย
* ์ด is used after a noun that ends in a consonant. (E.g. ์ ์๋์ด / ์ฑ
์ด / ์ด๋ฆ์ด )
* ๊ฐ is used after a noun that ends in a vowel. (E.g. ํ๊ต๋ / ์๋ง๋ / ์์๋ )
Letโs look at some example sentences:
์ ๋ฐ์ด ๋๋ฌ์์.โจThe shoes are dirty.ย ย
๋ ์จ๊ฐ ์ถ์์.โจThe weather is cold.
๋ฏผ์ง๊ฐ ํ๊ต์ ๊ฐ๋ค.โจMinji went to school.
๊ฐ์์ง๊ฐ ์ ์ ์ก๋๋ค.โจThe dog is sleeping.
๋นํ๊ธฐ๊ฐ ๊ณตํญ์ ๋์ฐฉํ์ต๋๋ค.โจThe plane has arrived at the airport.
Topic Marking Particles ์/๋
์ and ๋ are used to denote the topic of a sentence.
์ is used after a noun that ends in a consonant. (E.g. ์ ์๋์ / ์ฑ
์ / ์ด๋ฆ์ )
๋ is used after a noun that ends in a vowel. (E.g. ํ๊ต๋ / ์๋ง๋ / ์์๋ )
์ค๋์ ๋ ์จ๊ฐ ์ข์์.โจThe weather is nice today.
์ค๋ = โtodayโ. It is the topic of the sentence.
๊ทธ๋ ๊ณง ๊ฒฐํผ์ ํ ๊ฑฐ์์.โจHeโll get married soon.ย
๊ทธ = โheโ. It is the topic of the sentence.
Four Differences Between ์/๋ and ์ด/๊ฐ
์ด/๊ฐ puts the focus on the subject:
๋๊ฐ ์ด ์ปต์ ๊นผ์ด์?โจWho broke this cup?
๊ฐ puts the focus on โwhoโ broke the cup.
์ ๊ฐ ๊นผ์ด์.โจI did.
๊ฐ puts the focus on the subject โIโ, who broke the cup.
์/๋ puts the focus on the description:
์์ง ์จ๋ ์ง๊ธ ๋ญ ํด์?โจWhat is Sujin doing now?
๋ puts the focus on what Sujin isย โdoingโ.
์์ง ์จ๋ ์ง๊ธ ์๋ฆฌํ๊ณ ์์ด์.โจSujin is cooking now.
๋ puts the focus on Sujinโs action, which is โcookingโ.
New Information vs. Known Information
์ด/๊ฐ is used to introduce new information:
์๋ก์ด ์น๊ตฌ๊ฐ ์๊ฒผ์ด์. ๊ทธ ์น๊ตฌ๋ 17์ด์ด์์.โจI have a new friend. The friend is 17 years old.ย
Explanation: In the second sentence, the โfriendโ is no longer new information,ย because the friend was previously mentioned in the first sentence. Thatโs why you have to use โ์น๊ตฌ๋โ, and not โ์น๊ตฌ๊ฐโ in the second sentence.
์/๋ is used to mention known information:
์ด์ ํ๊ตญ์ด ์ํ์ด ์์์ด์. ๊ทธ ์ํ์ ๋๋ฌด ์ด๋ ค์ ์ด์.โจI had a Korean language test yesterday. That test was very difficult.
Explanation: Because the โtestโ is no longer new information, as it was previously mentioned in the first sentence, you have to use โ์ํ์โ, and not โ์ํ์ดโ in the second sentence.
Statements vs. Comparisons
์ด/๊ฐ is used to making broad statements:
๋๋ ์ค๊ฐ ์๋ป์.โจThe dress is pretty.
์์ฅ์ ์ฌ๋์ด ๋ง์์ด์.โจThere were many people in the market.
์/๋ is used in comparisons and contrasting:
์ ๋ ๊ทธ๋ฆผ์ ์ ๊ทธ๋ฆฌ์ง๋ง ๊ณต๋ถ๋ ๋ชปํด์.โจIโm good at painting, but Iโm not good at studying.
์ฒ ์๋ ํค๊ฐ ํฌ๊ณ ์ง๋ฏผ์ด๋ ํค๊ฐ ์์์.โจCheolsu is tall and Jimin is short.
๊ทธ ์๋น์ ํ๋ฒ๊ฑฐ๋ ๋ง์์ด์.โจThat restaurant has good hamburgers.
(This has the nuanced implication โbut not the saladโ or โbut not their serviceโ etc. , compared to their hamburger.)
Only after subject vs. After any noun
์ด/๊ฐ can be used only after the subject of a sentence:
์ผ์ดํฌ๊ฐ ๋ง์์ด์. โจThe cake is delicious.
๊ณ ํฅ์ด ์ด๋์ญ๋๊น?โจWhere is your hometown?ย
๋ถ์ฐ์ด ์ ๊ณ ํฅ์ด์์.โจBusan is my hometown.ย
์/๋ is used after any noun that requires emphasis:
์ ๋ ๊น์ง๋ฏผ์
๋๋ค.โจIโm Jimin Kim.ย
์ด๊ฒ์ ์ฑ
์ด์์.โจThis is a book.
๊ทธ๊ฒ์ ์์์
๋๋ค.โจThat is a chair.
Conclusions: ์ด/๊ฐ vs ์/๋ย
Please note that these are some of the most complicated grammar rules in Korean. Even advanced Korean learners often get confused when trying to distinguish the correct use of ์/๋ and ์ด/๊ฐ.
The best way to better understand these particles is to read Korean texts as much as you can, while keeping the aforementioned explanations in mind. That being said, I do have a practice that will help you practice using both of these & I'll be posting It after this one. (Because this one is alreasy long) So follow me to keep up with that.