YOU SAID:

once upon a time there was an ugly frog who died eight years ago

INTO JAPANESE

かつては8年前に死んだ醜いカエルがあった

BACK INTO ENGLISH

There used to be an ugly frog died eight years ago

INTO JAPANESE

以前は8年前に醜いカエルが死亡した

BACK INTO ENGLISH

Formerly an ugly frog died eight years ago

INTO JAPANESE

以前は醜いカエルが8年前に死んだ

BACK INTO ENGLISH

Ugly frog died eight years previously

INTO JAPANESE

醜いカエル 8 年以前に死んだ

BACK INTO ENGLISH

Ugly frog died eight years previously