There are many saudi dialect but the must common and easy one to learn the western cost accent so I'll translated to the hejazi let him do that, خليه يسويها let her come in, خليها تدخل let it (fly) fly, خليه يطير don't let him shower,لايتروش don't let her cook,لاتطبخ don't let it bit u. (insects) لاتقرصك did u let him keep it in fridge, خليته يدخلها الثلاجة did u let her decide by herself. خليتها تقرر بنفسها