YOU SAID:

what are they doing over there, let's go look

INTO JAPANESE

彼らは向こうで何をしているのか、見に行こう

BACK INTO ENGLISH

Let's see what they're doing over there.

INTO JAPANESE

彼らが向こうで何をしているのか見てみましょう。

BACK INTO ENGLISH

Let's see what they're doing over there.