This document describes a verb-based sentiment analysis of Manipuri language documents using conditional random fields for part-of-speech tagging and a manually annotated verb lexicon to determine sentiment polarity. The system was tested on 550 letters to newspaper editors, achieving an average recall of 72.1%, precision of 78.14%, and F-measure of 75% for sentiment classification. The authors conclude the work is an initial effort in sentiment analysis for the highly agglutinative Manipuri language and more methods are needed to improve accuracy.