Huvudgrupp 1

• Biber, Douglas; Conrad, Susan; Reppen, Randi, Corpus linguistics: investigating language structure and use., Cambridge, Cambridge Univ. Press, 1998
• Greenbaum, Sidney; Quirk, Randolph, A student's grammar of the English language, London, Longman, 1990
• The Oxford dictionary of English grammar., Oxford, Oxford UP, 1998