This is the full sentence: 넌 아무 말 안 해 아 제발 내가 잘할게 I don't know any Korean, but just trying to pronounce. I hear "Chalgalkke" via Google Translate pronounce. The initial position makes the ㅈ sound like ㅊ because of light aspiration. However, I don't understand why the 할 sounds likeㄱ+ㅏ+ㄹ (gal), and 게 sounds like ㄲ + ㅔ (kke). I couldn't find the rules for these online. Anyone can shed some light?


2 Answers 2


The standard pronunciation for “잘할게” (Verb “잘하다” + Ending conjugation “-ᆯ게”) is [잘할], one of the possible transliterations of which is “Chalhalkke.” And the rule applied is Tensation, Tensification or Unaspiration (경음화 (硬音化) or 된소리되기 in Korean).

Korean language standard, Part Ⅱ (“Standard pronunciation”), §6 (“Tensation”), Clause 27.

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“ㄱ,” “ㄷ,” “ㅂ,” “ㅅ,” and “ㅈ” right after the en-modifier conjugation “-ᆯ” or “-을” get tensed (unaspirated).

관형사형 ‘-(으)ᆯ’ 뒤에 연결되는 ‘ㄱ, ㄷ, ㅂ, ㅅ, ㅈ’은 된소리로 발음한다.

  • 할 것을[할슬]
  • 갈 데가[갈가]
  • 할 바를[할를]
  • 할 수는[할는]
  • 할 적에[할게]
  • 갈 곳[갈]
  • 할 도리[할리]
  • 만날 사람[만날람]

Exception: they're pronounced as lax sounds when pronouncing the two separately.

다만, 끊어서 말할 적에는 예사소리로 발음한다.

[Addendum] The same goes for conjugations beginning with “-ᆯ” or “-을.”

[붙임] ‘-(으)ᆯ’로 시작되는 어미의 경우에도 이에 준한다.

  • 할걸[할]
  • 할밖에[할께]
  • 할세라[할라]
  • 할수록[할록]
  • 할지라도[할라도]
  • 할지언정[할언정]
  • 할진대[할대]

Helpful notes

  • This is great! Do you know if there's a complete pronunciation rule list in English for Korean? If not, it's fine but helpful for beginners like me who mainly want to sing Korean. Jan 8, 2019 at 3:53
  • 2
    @CreativiTimothy There have been quite a few books published on the "Sounds of Korean". Wikipedia's Korean phonology page is pretty good.
    – Michaelyus
    Jan 8, 2019 at 10:12

Consider a word of the form (consonant + vowel + consonant-a)(consonant-b + vowel + ...)

1) Here we have difficulty in pronouncing consonant-a so that we mix a,b or strength b

For instance, 국밥(boiled rice served in soup), 할게 sounds like 국빱, 할께

And 잘할게 is 자+ㄹ할+케. (Here ㅎ is pronounced weakly so that extremely speaking, it sounds like 자랄께, 자라깨 or 자랏깨)

2) Not changing case : 점박이 (dotted animal) is 점바기

Note that there is no change in ㅁㅂ and a change in ㄱo

Recall the order of consonant ㄱ ㄴ ㄷ ㄹ ㅁ ㅂ ㅅ o ㅈ ㅊ ㅋ ㅌ ㅍ ㅎ

In my thought, there is short distance between ㅁ and ㅂ and a large distance between ㄱ and o

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