4. 念一念
5) Double Vowels

ㄲ[ssang kiyeok]
ㄸ[ssang digeut]
ㅃ[ssang bieup]
ㅆ[ssang siot]
ㅉ[ssang jieut]
   例子)까[kka]
꺄[kkya]
꺼[kkeo]
껴[kkyeo]
꼬[kko]
꾜[kkyo]
꾸[kku]
뀨[kkyu]
끄[kkeu]
끼[kki]
  따[tta]
땨[ttya]
떠[tteo]
뗘[ttyeo]
또[tto]
뚀[tty]
뚜[ttu]
뜌[ttyu]
뜨[tteu]
띠[tti]
  빠[ppa]
뺘[ppya]
뻐[ppeo]
뼈[ppyeo]
뽀[ppo]
뾰[ppyo]
뿌[ppu]
쀼[ppyu]
쁘[ppeu]
삐[ppi]
  싸[ssa]
쌰[ssya]
써[sseo]
쎠[ssyeo]
쏘[sso]
쑈[ssyo]
쑤[ssu]
쓔[ssyu]
쓰[sseu]
씨[ssi]
  짜[jja]
쨔[jjya]
쩌[jjeo]
쪄[jjyeo]
쪼[jjo]
쬬[jjy]
쭈[jju]
쮸[jjyu]
쯔[jjeu]
찌[jji]
  例子) ㄲ:까마귀[kkamagwi]
끄다[kkeuda]