As a deaf person and native french speaker, I'd like to know if there's a way to know if a word contain a "e muet" without relying on the pronunciation.
In order to able to place the accent based on the grammar rule that you can find here in french, I have to know if the next syllable contain a "e muet" but as I said I'm deaf, thus not able to easily know if the e is pronounced.
For example, let's take mystère and règle.
Quand doit on mettre un accent ? Pour le savoir, il faut couper le mot par syllabe : Si la syllabe contenant le son « é/è » se termine par une consonne, on ne met pas d'accent. Sinon, on met un accent.
If we apply the rule we can say that for both example it requires an accent but we don't know which one.
Accent aigu « é » ou accent grave « è » ? Observez la syllabe suivante (à droite) : Si elle contient un « e » muet, on met un accent grave « è ». Sinon, on met un accent aigu « é ».
And here comes the problem, I'm totally unable to know if mystère and règle is a "e muet" or not.