I think you mean ㅇ. when like this 이 sound is 'e' . because ㅇ is in the front. BUT, if you place ㅇ below the sound is 잉 'eng' because in the bottom position , ㅇ makes the sound ng. if you are learning 한글 hangeul , start with these consonants, in order.. ㄱ ㄴ ㄷ ㄹ ㅁ ㅂ ㅅ ㅇ ㅈ ㅊ ㅋ ㅌ ㅍ ㅎ

You mean ᄋ = ng When it is before a voval than it does not have a sound. But after a Vovel like 사랑 = Sarang it gets the ng sound!

Do you mean sounds that don't exist in Korean? For example F? Fighting -> 화이팅 Phishing -> 피싱 Is that it?

let me about hangeul alphabet ican read alittel how ican read korean flute????

what do you mean? don't have voice?