YOU SAID:
an accident is when something bad happens but its not anybody's fault
INTO JAPANESE
事故とは、何か悪いことが起こっても、それは誰のせいでもないときのことです
BACK INTO ENGLISH
An accident is when something bad happens and it's no one's fault
INTO JAPANESE
事故とは何か悪いことが起こって、それが誰のせいでもないことです
BACK INTO ENGLISH
An accident is when something bad happens and it's no one's fault
You've done this before, haven't you.