空を見て

look at the sky

→ 空
phrase Uncommon #18,936
look at the sky 空を見て is the te-form of 空を見る. Depending on context, it can mean “look at the sky” as a request or command, or “looking at the sky” when followed by another verb.
JA: 空を見て、何か気づかない?
EN: Look at the sky—don't you notice anything?

彼は空を見ていた

He was looking at the sky.

彼は仰向けに寝て空を見ていた

He lay on his back, looking up at the sky.

空を見てからジャンプしてみた

I looked up at the sky and then tried jumping.

空を見てみろよ

Look at the sky!

彼は空を見て立っていた

He stood looking up at the sky.

空を見てから歩いてみた

I looked at the sky and then tried walking.