This work provides an analysis of inchoative, morphological and analytical causatives in Pima Bajo, an Uto-Aztecan language spoken in Northwest Mexico. It is argued that for the analysis of these constructions it is useful not only to pay attention to the structural morphosyntactic properties, but also to functional values like, spontaneous, direct or indirect causation. All these functional values expressed in the scale: analytical-morphological-lexical causatives, proposed by Comrie (198:333). Constructions obtained from verbs selecting object complements, show that they could also be explained by considering the same kind of functional values. The scale previously mentioned, it is also useful to explained the fact that Pima Bajo doesn´t allow double object causatives. The scale makes unnecessary the Principle of Argument Density proposed by Song (1996).
