The semantics of tense, orientation, and aspect in English

Allen, 1966

Bolinger, 1947, More on the present tense in English, Language, 23, 434, 10.2307/410307

Calver, 1946, The uses of the present tense forms in English, Language, 22, 317, 10.2307/409921

Comrie, 1976

Goldsmith, 1976

Goldsmith, 1982, The logic of the English progressive, Linguistic Inquiry, 13, 79

Hirtle, 1967

Holt, 1943, Études d'aspect, Acta Jutlandica, 15

Jakobson, 1971, Selected writings, II

Jespersen, 1931

Joos, 1964

King, 1981, On predicting the Portuguese infinitive

King, 1980, The meaning of the progressive in Spanish and Portuguese, The Bilingual Review, 7, 228

King, 1980, On the notion of stativity in Spanish and Portuguese

Kirsner, 1977, The theory, Columbia University Working Papers in Linguistics, 4, 21

Lakoff, 1970, Tense and its relation to participants, Language, 46, 838, 10.2307/412259

Leech, 1971

Lyons, 1968

McCoard, 1978

Quirk, 1972

Sag, 1973, On the state of progress on progressives and statives

Scheffer, 1975

Wekker, 1976

Woisetschlaeger, 1976