-는데 / -(으)ㄴ데

바쁜데 도와줄게요.

I'm busy, but I'll help you.

비가 오는데 우산이 없어요.

It's raining, but I don't have an umbrella.

시간이 있는데 영화 볼까요?

I have time, so shall we watch a movie?

한국어를 공부하는데 아직 어려워요.

I'm studying Korean, but it's still difficult.

날씨가 좋은데 산책하러 가요.

The weather is nice, so let's go for a walk.