prononciation de la lettre 's'

Question

Dans la phrase: “Je vais aux États-Unis.” pourquoi la lettre “s” est prononcée dans les mots “aux” et “États”, mais pas dans le mot “vais”?

Accepted Answer

Bonjour Jaap,
Here there is no liaison between "vais" and "aux" because it would sound very strange seeing the following two liaisons that you noticed. All in all, it would not sound great in French! 
Take a look at our partner's site for optional liaisons:
Optional Liaisons - Liaisons facultatives
I hope this is helpful.
Bonne journée !

Answer

you normally link an S to the next vowel so it would be vaisaux etatsunis like they’re the same word if that makes sense?

Answer

Il y a un vowel sur le mot unis