maybe in arabic :
Robbama : ربما
example : Robbama ana jai3 (3=ayn or ع) = Maybe i am hungry
or it can be :
Qad : قد
example: la taf3al hada , qad la tastati3 = don't do that , maybe you can't
Moumkin : ممكن
example :
Ahmed : hal sayati omar ? = will omar come ?
Ali : na3am , moumkin = yes , maybe