Korean phrase
~ 때문에요. ~ ttae mu ne yo
Meaning
Because of ___
When to use it
It gives the reason for something. It is a short, polite reply to a question asking why in daily conversation, though it may sound slightly cold.
Example dialogue
왜 늦었어요? wae neu seo sseo yo
Why were you late?
교통 때문에요. kyo tong ttae mu ne yo
Because of traffic.