YOU SAID:

the box is not over there and never will be

INTO JAPANESE

箱はそこにはありませんし、これからもありません

BACK INTO ENGLISH

The box is not there and never will be.

INTO JAPANESE

箱は存在しませんし、今後も存在しません。

BACK INTO ENGLISH

The box doesn't exist and never will.

INTO JAPANESE

ボックスは存在しませんし、今後も存在しません。

BACK INTO ENGLISH

The box doesn't exist and never will.