据我所知，近三十年，有三个大部头的描述性英语语法。假如题主要的是权威型语法参考书，用来作语言研究之用，这三部应该比较合适。
Title A Comprehensive Grammar of the English Language
Author Randolph Quirk
Publisher Longman, 1987
ISBN 8131733432, 9788131733431
Length 1779 pages
Title Longman Grammar of Spoken and Written English
Editor Douglas Biber
Publisher Longman, 1999
ISBN 0582237254, 9780582237254
Length 1204 pages
Title The Cambridge Grammar of the English Language
Authors Rodney D. Huddleston, Geoffrey K. Pullum
Publisher Cambridge University Press, 2002
ISBN 0521431468, 9780521431460
Length 1842 pages
假如题主只是以学习者的角度，想要更系统地理顺英语语法知识，则不妨考虑由这三个大部头的作者撰写的、面向学生的语法书。
Title A Student's Grammar of the English Language
Grammar Reference
Authors Greenbaum, Greenbaum Sidney, Randolph Quirk
Contributor Randolph Quirk
Publisher Pearson Education, 1990
ISBN 8131721981, 9788131721988
Length 300 pages
Title Longman Student Grammar of Spoken and Written English
Author Douglas Biber, Susan Conrad, Geoffrey Leech
Publisher Longman, 2002
ISBN 0582237262, 9780582237261
Length 496 pages
Title A Student's Introduction to English Grammar
Authors Rodney Huddleston, Geoffrey K. Pullum
Publisher Cambridge University Press, 2005
ISBN 0521612888, 9780521612883
Length 322 pages
另外，还有两部来自剑桥与牛津大学出版社的英语语法，以全面及现代著称，也是比较权威的学习型语法书。
Title Cambridge Grammar of English: A Comprehensive Guide
Authors Ronald Carter, Michael McCarthy
Publisher Cambridge University Press, 2006
ISBN 312534333X, 9783125343337
Length 973 pages
Title Oxford Modern English Grammar
Authors Bas Aarts
Publisher Oxford University Press, 2011
