YOU SAID:

The last party was lovely, wasn't it?

INTO JAPANESE

最後のパーティーは素敵でしたね。

BACK INTO ENGLISH

The last party was wonderful.

INTO JAPANESE

最後のパーティーは素晴らしかったです。

BACK INTO ENGLISH

The last party was great.

INTO JAPANESE

最後のパーティーは素晴らしかった。

BACK INTO ENGLISH

The last party was great.