YOU SAID:

Man that party was lit

INTO JAPANESE

そのパーティーが点灯した男

BACK INTO ENGLISH

The man whose party lit up

INTO JAPANESE

パーティーが明るくなった男

BACK INTO ENGLISH

The Man Who Sit The Party Is Bright

INTO JAPANESE

パーティーに座る男は明るい

BACK INTO ENGLISH

The man sitting at the party is bright.

INTO JAPANESE

パーティーに座っている男性は明るいです。

BACK INTO ENGLISH

The man sitting at the party is bright.