Do you mean 'why' or 'how'? If you mean 'how', it is similar to English but fractionally 'lighter'. If you mean 'why', it's because 'll' is always prononounced as a normal 'll' unless it's following a letter 'i' preceded by a vowel. Here are some examples: aill (e.g., taille) eill (oreille) euill (feuille) œill (œillet) ouill (grenouille) ueill (cueillir) uill (juillet) In these cases, the double 'll' is pronounced like a 'y'. There are also a few words, like 'fille', where it's pronounced as a 'y' even though there isn't another vowel before the 'i'. But in all other situations, as with 'village' and 'ballet', for example, the two 'lls' are just ordinary 'lls.' I hope that helps.

hi, try "Forvo"