Nogueira, A. F. de S. Predication in the Wayoro language (Tupi): properties of finiteness. São Paulo, 2019. 190p. PhD. Thesis Faculty of Philosophy, Letters and Human Sciences. University of são Paulo. Generally, the properties of the main-declarative-affirmative-active clauses are the finite verbal clause prototype, that is, the prototype from which non-finite clauses will deviate (GIVÓN, 2016, p. 272). As mentioned in the literature, such deviation will occur in the following syntactic environments: subordinate clauses (CRISTOFARO, 2005) and nominalizations, being the latter a clearly predominant phenomenon in the South American languages (GIJN; HAUDE; MUYSKEN, 2011a). This thesis focuses on the properties of finiteness in these three syntactic environments: matrix sentence, (infinitive) subordinate clause, and nominalization. In several languages, there is a morpheme that creates nouns from intransitive and transitive verbs with the meaning of "a place where X happens"or "an instrument for X"(COMRIE; THOMPSON, 2007). In the Wayoro language (Tupari subfamily, Tupian), this morpheme is-p∼-m 'nominalizer'. However, we noticed constructions with a homophonous morpheme that appear as complements of verbs and that show properties of clauses. Are these complements better analyzed as nominalizations or as subordinate clauses? The property of main clauses (morphosyntactic finiteness features)-person marking, valency-changing morphemes, tense and aspect markers, sentential type, modality, and polarity-serve to compare the subordinate clauses and the nominalizations. Based on the morphosyntactic finiteness features, we analyze as nominalization the construction that behaves syntactically as a noun phrase without any finiteness feature. We analyze as a subordinate (infinitive) clause the-p∼-m construction which functions as an object of a verb and allows aspect markers and expression of cliticized pronominal subjects or non-pronominal subjects. In this way, morphosyntactic finiteness features allow us: to distinguish, on the one hand, nominalization from subordinate clauses and, on the other hand, matrices from subordinate clauses, since matrix sentences exhibit agreement and tense marking, which do not occur in infinitive subordinate clauses; to distinguish verbal predicates (matrix sentences and subordinate clauses) from nonverbal predicates, since copula and existential verbs do not occur with person marking and tense/aspect affixes.