ㄹ has three pronunciations: 1. L 2. R (Not the English one, it's close to the Spanish one but you have to flap your tongue only once.) 3. N When to pronounce it as L? -at the end of words: 말 mal, 술 sul, 제발 jebal -before consonants: 울다 ulda, 말하다 malhada, 슬쩍 seuljjeok -after another ㄹ: 몰래 mollae, 멀리 meolli, 들리다 deullida When to pronounce it as R? -before vowels: 둘이서 duriseo, 버리다 beorida, 달아오르다 daraoreuda When to pronounce it as N? -after ㅇ: 능력 neung-nyeok, 명령 myeong-nyeong, 승리 seung-ni -after ㄱ (and ㄱ becomes ㅇ): 격렬하다 gyeong-nyeolhada, 식량 shing-nyang, 확률 hwang-nyul -after ㅁ: 함락 ham-nak, 첨력 cheom-nyeok, 심리 shim-ni -after ㅂ (and ㅂ becomes ㅁ): 입력 im-nyeok, 급료 geum-nyo, 법률 beom-nyul At the beginning of a word, there's no set rule but I'd suggest following the original language of the word because most of them are loanwords. 라디오 radio, 레몬 lemon, 라면 lamyeon/ramyeon (I prefer ramyeon) Then we have ㄹㄴ and ㄴㄹ, I wanted to explain this separately. ㄹㄴ is always pronounced ㄹㄹ: 물노리 mullori, 잘나다, jallada, 별나라 byeollara ㄴㄹ is MOSTLY also pronounced ㄹㄹ: 곤란 gollan, 완료 wallyo, 진리 jilli But there are some exceptions! In some words ㄴㄹ is pronounced ㄴㄴ (정신력 jeongshinnyeok) but you'll have to learn those by heart, they're mostly (if not all) hanja compound words that are rarely used.