看见什么了

what did you see?

→ 看见
phrase Rare #25,998
what did you see? 了 indicates that the seeing happened or is relevant now.
CH: 你刚才看见什么了?
EN: What did you just see?

你看见什么了

What did you see?

— 大红灯笼高高挂 (1991)

帕布洛,看见什么了?

Pablo, what did you see?

— 死亡录像 (2007)

你看见什么了?

What did you see?

— 怒火青春 (1995)

你到底看见什么了

What exactly did you see?

— 大红灯笼高高挂 (1991)

你想知道我看见什么了吗?

Do you want to know what I saw?