The sounds "aille, ail, ouille, ouil, eille, eil et ille" are a real challenge for French language learners. There is a subtlety between these sounds that can take some diligence and a lot of practice. Pronunciation takes practice. I feel that repetition of the target sound is a solid strategy to getting the sound right. One can listen, copy what they hear and even record themselves to see if they sound similar. This is suitable for any FSL learner of the language. What you get: The Pdf slide de