This article describes, within the framework of the functionalist theory, the various syntactical structures of the ingush language. This language is a variant of the chechen, spoken in the north-center of the Caucasus. Ingush presents mainly in its sentences to verbal predicate a syntactical construction of ergative type. Nevertheless with some verbs or with the use of particular verbal modality the syntactical construction changes and looks like more the structure of accusative type