L’accent aigu (the accute accent) : é
We write e with an accute accent (é) when this letter is the first syllable of a word :
We also write e with an accute accent (é) when this vowel is the last letter of a word, eventually followed by a mute e or an s, or both :
L’accent grave (the grave accent) : è
We write e with a grave accent (è) when this vowel is the second last letter of a singular word ending with s :