Korean · Pronunciation Guide
gung-geum-ha-da. A ㄱ that voices after the nasal, the lip-flat ㅡ in the middle, and a weakened ㅎ.
gunggeumhada
Four beats. The first two vowels are opposites -- rounded then flat -- which is the main articulatory demand, and the same ㄱ appears twice with different realizations on either side of the nasal.
Listen: 궁금하다
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결과가 궁금해요.
Gyeolgwaga gunggeumhaeyo.
I'm curious about the result.
Listen: 결과가 궁금해요.
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결과가 궁금해요 puts 결과 in front, where the ㄹ tenses the ㄱ into ㄲ, giving gyeol-kkwa. The sentence therefore contains a tensed consonant, a voiced one and a lenited h inside six syllables.
Round the ㅡ and it so it matches the first vowel gives 'goong-goom', which is the standard failure here, when the second one is flat. Then the two ㄱ sounds should differ: the first is quiet and word-initial, the second is fully voiced after a nasal.