YOU SAID:

That party was so much fun last night

INTO JAPANESE

そのパーティーは昨夜とても楽しかった

BACK INTO ENGLISH

The party was very fun last night

INTO JAPANESE

昨夜のパーティーはとても楽しかった

BACK INTO ENGLISH

I enjoyed myself at the party last night.

INTO JAPANESE

昨夜のパーティーはとても楽しかった。

BACK INTO ENGLISH

I enjoyed myself at the party last night.