First, following 14 characters are consonants.
|ㄱ: Gieok||ㄴ: Nieun||ㄷ: Digeut||ㄹ: Rieul||ㅁ: Mieum||ㅂ: Bieup|
|ㅅ: Siot||ㅇ: Ieung||ㅈ: Jieut||ㅊ: Chieut||ㅋ: Kieuk||ㅌ: Tieut|
|ㅍ: Piheup||ㅎ: Hiheu|
You can combine consonants.
|ㄲ: Ssanggieok||ㄸ: Ssangdigeut||ㅃ: Ssangbieup||ㅆ: Ssangsiot|
And 10 vowels.
|ㅏ: A||ㅑ: Ya||ㅓ: Eo||ㅕ: Yeo||ㅗ: O||ㅛ: Yo||ㅜ: U||ㅠ: You||ㅡ: Eu||ㅣ: I|
You can also combine vowels too.
|ㅐ: Ae||ㅒ: Yae||ㅔ: E||ㅖ: Ye||ㅘ: Wa||ㅙ: Wae||ㅚ: Oe||ㅝ: Wo||ㅞ: We|
|ㅟ: Wi||ㅢ: Ui|
In English, Japanese, Chinese, we write down alphabets side by side. How about Korean? Is it the same? No. When you write down Korean sentences, you should make a combination. And then, write down these combinations side by side, not alphabets. One combination means one syllable. Let's see an example.
가나다 Ga Na Da
I will call each combination Geulja. I said one Geulja means one syllable. So Ga is 가, Na is 나 and Da is 다.
In the next article, I will post an article how you can combinate Korean alphabets to make Geulja. It will be fun if you make your name in Korean word.