YOU SAID:

That was a waste of time.

INTO JAPANESE

それは時間の無駄でした。

BACK INTO ENGLISH

It was a waste of time.

INTO JAPANESE

全く時間の無駄だった

BACK INTO ENGLISH

It was a total waste of time.

INTO JAPANESE

全く時間の無駄だった

BACK INTO ENGLISH

It was a total waste of time.