une (mauvaise) erreur is the translation of a (bad) mistake.
mauvaise faute
In French, "mistake" is feminine and is spelled "erreur".
The phrase "my bad" can be translated into French as "ma faute." This expression is commonly used to acknowledge a mistake or take responsibility for something that went wrong. Another informal way to express a similar sentiment could be "désolé" (sorry).
Its very hard to deal with a mistake .. trust me . it depends on how bad the mistake is . the worst the mistake is the harder it is to fix .
My fault or my mistake
'Une erreur'
a bad spelling mistake...
When someone uses the phrase "my bad" it means that they are owning up to a mistake. They are basically stating that they accept responsibility for the mistake they made.
faire une erreur
une faute
Supernatural - 2005 The French Mistake 6-15 is rated/received certificates of: USA:TV-14
My mistake or whoops!!