V-면서
Attach -면서 to a verb stem to show two actions happening at the same time, usually by the same subject. It often means "while doing ...". Example: 나는 떡을 먹으면서 시장을 둘러봤어요. = I looked around the market while eating rice cake.
나는 떡을 먹으면서 시장을 둘러봤어요.
I looked around the market while eating rice cake.
