YOU SAID:

Once upon a time lived a person who existed and then a frog ate them

INTO JAPANESE

昔々存在していた人が住んでいた後、カエルがそれらを食べました

BACK INTO ENGLISH

Frogs ate them after people who lived long ago lived

INTO JAPANESE

カエルはずっと前に住んでいた人々が住んでいた後それらを食べました

BACK INTO ENGLISH

The frog ate them after people who lived long ago lived

INTO JAPANESE

カエルはずっと前に住んでいた人々が住んだ後にそれらを食べました

BACK INTO ENGLISH

The frog ate them after people who lived long ago lived