cassan

In a sentence

• Il a cassé la branche fragile.

  He broke the fragile branch.

  Here, 'cassé' is the past tense of the verb 'casser', meaning 'to break', used to describe the act of breaking something physically.

• Le sommet du vase s'est cassé lors de la chute.

  The top of the vase broke during the fall.

  In this instance, 'cassé' is used in a reflexive context, 's'est cassé', to indicate that the vase broke as a result of an action.

• Elle a peur que le verre se casse s'il est trop chaud.

  She fears that the glass might break if it gets too hot.

  Here, 'se casse' is the subjunctive form suggesting the possibility of the glass breaking under certain conditions.