sa faute
It's not his fault that she preferred him.
Ce n’est pas sa faute si elle le préférait.
— The Irony of Fate, or Enjoy Your Bath! (1976)
And it's his fault Ne Zha got out last time.
Et c’est à cause de lui que Nezha s’est échappé la dernière fois.
— Ne Zha (2019)
Tom doesn't think it's his fault.
Tom ne pense pas que ce soit sa faute.