It's "teh" "kwun" "doe" eh, uh, oh. Having spent a year in Korea, it's like nails on chalkboard to hear mispronunciations of some words. My wife is also fluent, so I get constant corrections. I commend you for looking for clarity on this. Many either assume they are right, or just don't care if they are wrong. Either way, it's interesting to see how some people butcher the language.