YOU SAID:

once there was a guy and his name was bob

INTO JAPANESE

かつて男がいて、彼の名前はボブだった

BACK INTO ENGLISH

Once a man, his name was Bob

INTO JAPANESE

かつて男は、彼の名前はボブ

BACK INTO ENGLISH

Once a man, his name is Bob

INTO JAPANESE

一度男、彼の名前はボブ

BACK INTO ENGLISH

Once a man, his name is Bob