Walter Hirtle

The Support Role of Auxiliaries

Walter Hirtle, Fonds Gustave Guillaume, 2013 .

MAY, CAN and the expression of permission

Walter Hirtle, Patrick Duffley, Sandra Clarke, 1981 .

Number and inner space: A study of grammatical number in English

Walter Hirtle, 1982 .

The simple and progressive forms : an analytical approach

Walter Hirtle, W. Hirtle, 1967 .

-Ed Adjectives like ‘verandahed’ and ‘blue-eyed’

Walter Hirtle, W. Hirtle, 1970, Journal of Linguistics.