1. At the beginning of a word:
* "y" is pronounced like the English "ee" in "see". For example: "y a" (there is), "y compris" (including).
2. In the middle of a word:
* "y" is usually silent when it's between two vowels. For example: "pays" (country), "voyage" (journey).
* "y" is pronounced like the English "ee" in "see" when it's between a vowel and a consonant. For example: "thym" (thyme), "myrtille" (blueberry).
* "y" is pronounced like the English "i" in "hit" when it's between two consonants. For example: "lyon" (Lyon), "style" (style).
3. At the end of a word:
* "y" is usually silent when it's at the end of a word. For example: "monnaie" (money), "bicyclette" (bicycle).
4. Special cases:
* "y" can be pronounced like the English "j" in "joy" when it follows the letter "g". For example: "voyage" (journey), "gymnasium" (gymnasium).
Note: This is a general guide. There are always exceptions and regional variations in French pronunciation.
It's best to listen to native speakers and use a dictionary to confirm the pronunciation of individual words.