Parallel texts – texts in one language and their translations to other languages – are becoming more and more available nowadays on the Web.
Aligning these texts means to find some correspondence between them, in sentence level, for instance. In this paper we describe some experiments done with Brazilian Portuguese and English parallel texts using five well known sentence alignment methods. The results show that most of them performed very well on the four corpora used for testing, with 85.89%-100% of precision.