The study is based mainly on the unpublished data collected in Yep chic Chihuahua which in comparison with the Pima Bajo spoken in Sonora is less innovative. References to N vome, an older Piman variety from a document written between 1621 and 1672, are made. A brief description of the phonemic inventory, the phonological processes, the stress and the syllable. An outline of the morphology of the language. The syntax part discusses clause structure and the syntax of arguments for independent and dependent constructions.
Emphasis is given to pronouns and the way they are used as arguments of a predicate.