YOU SAID:

Once upon a time there were three little pigs and the time came for them to leave home and seek their fortunes.

INTO JAPANESE

昔々、三匹の子ぶたがあったし、時間に家を出るし、彼らの幸運を追求するために来た。

BACK INTO ENGLISH

Come to once upon a time, the three little pigs had to leave home at the time, and to seek their fortunes.