How do you know which consonant to use?
When sounding out words in Korean, how do you know which consonant to use? Or are you not supposed to sound them out like in English? For example, how do I know if it's 잘몰라 or 찰몰라? (for 'I don't know') Because I know that 잘몰라 is correct, but are you just supposed to know the difference between the two words? How do you know when to use ㅁ vs ㅂ? This question probably seems confusing, but I don't know how to word it.