Published online by Cambridge University Press: 24 December 2009
Section 1. Introduction 1.01. All the above-mentioned categories have been the subject of considerable interest in the last few years. T. Gotō (1987) has devoted a book to Class I presents (thematic presents with normal grade of the root and stable root accent) in Sanskrit, and H. Rix has published a monograph on Indo-European moods (1986) and an article on the middle voice (1988). B. Barschel (1986) has addressed the question of the antiquity of the subjunctive and optative, and their absence from the Anatolian branch of IE. The question of the special primary endings of the singular active in the thematic conjugation was reopened by W. Cowgill (1985). Yet despite all this attention some questions still remain puzzling.