not 다면서 but ~하다+면서
-면서 = -며
1. though, yet, notwithstanding, in spite of, for[with] all
나쁜 줄 알면서 그는 거짓말을 했다
He told a lie though he knew it was wrong.
2. as, while, at the same time (that), with, between, during
춤을 추면서 노래 부르다
dance and sing at the same time
with a smile
i heard that or (somebody) said that
I heard that he plans to move to a Greek island.
그리스의 섬으로 이사 갈 거라고 하던데요.
They said they wanted a completely different approach.
그 사람들은 완전히 다른 방향으로 접근하고 싶다고 하던데요.
-다고 and -라고 have so many way to use
so i can't explain that in a few lines.... sorry
if you bring me some example, i will try to explain that