1. The verb system of present-day American English;Allen,1966
2. Unspeakable sentences: narration and representation in the language of fiction;Banfield,1982
3. Time, tense, and the verb: a study in theoretical and applied linguistics, with particular attention to Spanish;Bull,1963
4. On Reichenbach's approach to tense;Comrie;CLS,1981
5. Tense;Comrie,1985