YOU SAID:

Once upon a time there was a world.

INTO JAPANESE

昔々 の世界だった。

BACK INTO ENGLISH

Once upon a time the world was.

INTO JAPANESE

昔々、世界だった。

BACK INTO ENGLISH

Once upon a time, was the world.

INTO JAPANESE

昔々、世界であった。

BACK INTO ENGLISH

Once upon a time, were in the world.

INTO JAPANESE

昔々、世界であった。

BACK INTO ENGLISH

Once upon a time, were in the world.