causes of transitive. The clitics indicates person, negation, and the exhortative mode. The constituents and the particles signal distinctions in time, aspect and modality. In Kamayurá, a derivation of elements of a category from others of the same or distinct categories occurs through the addition of affixes to radicals and through a combination of roots and radicals. Both the affixation and the derivation can be used in a morphological level and a syntactic level. A prefix is used in the derivation of nominals while a suffix is used in other cases. In the verbal derivation, prefixes are used. Below we will only look at the diminutive and the augmentative forms of words. In the endocentric derivation of nouns, the following suffixes are used, all of them tonics: {-i} “diminutive” with two allomorphs: -i in oral context and – ĩ in nasal context: kap “moth” à kawi “small moth” tukan “toucan” à tukanĩ “small toucan” –pĩ “diminutive”: y’a “flower” à y’apĩ “little flower” ywyrapat “arch” à ywyrapapĩ “little arch” {-u} “augmentative”. This is –u in the oral condition and –ũ in the nasal condition: ipira “fish” à ipirau “big fish” wyra “bird” à wyrau “big bird” {-ete} augmentative corresponds as well with “true genuine”: -akaŋ “head” à -akaŋete “big head” -op “leaf” à -owete “big leaf” Case and agreements The Kamayurá language is composed of combined aspects of the nominative-accusative, active-stative and the establishment of a final verb with initial interrogative words. The Kamayurá language is also hierarchical, for example: The forms in series I with transitive verbs in the indicative and exhortative modes are used to codify A, the clitic pronouns to codify O and the prefixes of series IV to indicate A and O simultaneously. Hierarchical references It is important to note that the choice of the participant is being governed by the hierarchy of reference indicated in following which: a) the first person has precedence over the second person b) the second person has precedence over the third and c) A has precedence over O: a) 1>2>3 b)A>O. Depending on the hierarchy, given by both the A and O participants, the one higher hierarchical, will be expressed with the verb by the corresponding pronominal element. The following example explains lines 1 – 5 in the above hierarchical reference. a –etsak “I see him” (1sg Vs. 3) ja-etsak “We (incl) see him” (1ip Vs. 3) oro-tscak “We (excl) see