Here's a breakdown:
* Br: The "br" sound is similar to the English "br" in "bread".
* e: The "e" is silent.
* ta: The "ta" sounds like "tah".
* gn: This is a unique French sound that is similar to the "ny" in "canyon".
* e: This "e" is also silent.
Therefore, the entire word sounds like "bre-tah-ny" with a slightly nasal "ny" sound at the end.