This paper intends to delineate a syntactic derivation for verbal agreement in Brazilian Sign Language. More specifically, we analyze regular agreement verbs and backward agreement verbs. Following the recent framework of the Generative Theory concerning this topic (CHOMSKY, 2000, 2001; MYIAGAWA, 2010; WOOLFORD, 2006; BAKER, 2008; BITTNER AND HALE, 1996; and others), we claim that sentences with a regular agreement verb show a nominative agreement pattern, in which the subject bears nominative Case and the object bears accusative Case. On the other hand, sentences with a backward agreement verb show an ergative agreement pattern, in which the subject receives inherent ergative Case and the object bears nominative Case. [ABSTRACT FROM AUTHOR]