How do you say "how do you say in Korean?" in Korean?

How do you say in Korean?

Formal
____ 은or는 한국말로는 뭐에요?

_____ un(or nun)  han guk mal lo nun mu uh ae yo?

Informal
은 or 는 한국말로는 뭐야?
____  un(or nun)  han guk mal lo nun mu uh ya?



*when to use 는 (nun)
when the last word syllable ends with two sounds  ex, Me, Cake,
*when to use 은 (un)
when the last word syllable ends with three sounds ex. pop, caramel