Dear Friend,

The correct sentence is "Assalam Alaikum". It is a arabic word which means in english

" May allah's peace and blessings be upon you".

I appreciate your concirn about saying it correctly. If you have any other questions about islam, than you can visit FANAR Organisation which is in souq area or you may call me at 5856874, insha allah i will try to get you answers. My name is mohammed younus.