Holschuh, Louis W.
The functions of the English grammer/Louis W. Holscchuh
New York: St. Martin`s Press, 1991,
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Hughes, John
Times tenses and conditions/John Hughes and Tom McArthur
London Collins 1994,
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English grammatical structure : a general syllabus for teachers
by L.G. Alexander ... [and others]
Longman, 1975
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Lasnik, Howard
A Course in minimalist syntax : foundations and prospects
Blacwell , 2005
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Honnor, Sylvia
Tricolore: pupil's book/Sylvia Honnor, Ron Holt, Heather Mascie-Taylor
Leeds E.J. Arnold 1985,
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