YOU SAID:

There's a boy walking in the forest who was eaten by a monster

INTO JAPANESE

森を歩いているモンスターによって食べられた少年があります。

BACK INTO ENGLISH

The boy was eaten by a monster walking through the Woods.

INTO JAPANESE

その少年は森の中を歩くモンスターに食べられました。

BACK INTO ENGLISH

The boy was eaten by the monster walk in the Woods.

INTO JAPANESE

その少年は森の中でモンスターの散歩に食べられました。

BACK INTO ENGLISH

The boy was eaten by the monster walk in the Woods.