help knowing letter sounds first and last I need help knowing which letter sound is considered first or last and which vowels sound to use in a word. For the word 고구마 "ko-gu-ma" how can I tell when the Hangul letter ㄱ for "g/k" is to be pronounced first as a "g" or last as a "k". That word 고구마 when written looks like it should be "ko-KU-ma" not "ko-GU-ma". Also, why is the ㅗ vowel pronounced as "oh" also pronounced as "ew" and how can I know what sound applies when? Thanks for any help!