EN
The ability of the Cairo Arabic verbs to provide functionally active basic stem oppositions is examined. The study concentrates on the trichotomous system faÓal, fiÓil and fuÓul. It examines their ability to convey some general grammatical and derivational meanings, such as transitivity and intransitivity, as well as more specific functions related to them such as causativity as opposed to reflexivity, activeness as against passiveness, with or without unpredictable lexical connotations. Some introductory parallels with Standard Arabic are provided.