YOU SAID:

The horse walked into the house, and then the horse was in the house, and then the horse ate the house, and then the house was in the horse.

INTO JAPANESE

馬は家に入って、馬が家にいて、馬が家を食べ、家が馬に入っていた。

BACK INTO ENGLISH

Horses entered the house, the horses were at home, the horses ate the house, the houses were in the horses.

INTO JAPANESE

馬は家に入り、馬は家にいた、馬は家を食べた、家は馬にあった。

BACK INTO ENGLISH

The horse entered the house, the horse was at home, the horse ate the house, the house was on the horse.

INTO JAPANESE

馬は家に入った、馬は家にいた、馬は家を食べた、家は馬にあった。

BACK INTO ENGLISH

The horse entered the house, the horse was at home, the horse ate the house, the house was on the horse.