Quote:
Originally Posted by
DukesofStratosphear 
Not necessarily.
My auntie lived in the Los Angeles area for almost twenty years and didn't lose her English accent at all.
It all depends on the individual. Some lose their accents completely, some partially, and some not at all. I once studied with a guy who grew up in Scotland and then lived in England, Canada, and then Germany (that's where I met him). His accent was such a mish-mash that nobody could possibly have guessed where he was from. It was kinda cool, really.
When I was about seventeen, I dated a girl for a little bit before I realized she was German and had moved to the US from Germany only when she was 13. Even after I found out, I could hear no trace of German accent in her.
There's an Englishman who lives in my town and has lived here for two or three decades. He sounds like he just stepped off the plane.