YOU SAID:
a party at my house at 8
INTO JAPANESE
8時に私の家でパーティーを開いた
BACK INTO ENGLISH
We had a party at my house at eight.
INTO JAPANESE
私たちは8時に私の家でパーティーをしました。
BACK INTO ENGLISH
We had a party at my house at eight.
Come on, you can do better than that.