Moien geet et? et geet mir gutt/et geet mat gutt mir (some dialectal variation) merci an du Mäin Numm as*... ech hunn fofzéng joer (lit. I have 15 years) ech hunn schonn e bëssen Lëtzebuergesch geléiert. wéi vill kascht dat (but I would normally say "wéi vill as* et) *as is spelt with a double s but italic thinks I'm swearing

The Omniglot site has a pile of useful pages for common phrases. What you need might be here: http://www.omniglot.com/language/phrases/luxembourgish.php Radio Lingua in Ireland also has a One Minute Luxembourgish series: http://radiolingua.com/shows/other-languages/one-minute-luxembourgish/