Blass, Friedrich, and Debrunner, Albert. A Greek Grammar of the New Testament and Other Early Christian Literature. Chicago: University of Chicago Press, 1961. 
English translation of the 9th-10th German ed. by Robert Funk and commonly called BDF. One of the best reference grammars; has English, Greek, and Scripture indices. 
PA881 .B513 1961 

Brooks, James A., and Winbery, Carlton L. Syntax of New Testament Greek. Washington, D.C.: University Press of America, 1979. 
Thorough analysis of Greek syntax with examples from NT passages. 
PA836 .B76 

Dana, H. E., and Mantey, J. E. A Manual Grammar of the Greek New Testament. New York: Macmillan Company, 1955, 1957. 
A good intermediate text for those who have the fundamentals of Koine Greek. 
PA817 .D3 1957 

Efird, James M. A Grammar for New Testament Greek. Nashville: Abingdon Press, 1990. 
This book has the clarity of the presentation and the compactness with the traditional deductive approach. Notable strengths are: emphasis throughout upon the significance of the Greek verbal system, incremental intruduction of various verb tenses, treatment of mood, discussion of negation, and extensive paradigms. 
PA817 .E35 1990 

Fanning, B.M. Verbal Aspect in New Testament Greek. Oxford: Clarendon Press, 1990. 
This study is meant as a comprehensive introduction to verbal aspect in NT Greek. The first half defines verbal aspect, distinguishes it from Aktionsart, and defines the two primary aspects of Greek(aorist and present). The second half discusses the aspects in the indicative mood, commands and non-indicative moods. 
PA847 .F36 1990 

Moulton, J. H., et al. A Grammar of New Testament Greek. 4 vols. Edinburgh: T & T Clark, 1906-1976. 
Vol. 3 on syntax and vol. 4 on style were completed by Nigel Turner; vol. 2 deals with accidence and word formation, while vol. 1 consists of some excellent prolegomena by Moulton. 
PA813 .M9 

Smyth, H. W. A Greek Grammar. Revised by G. M. Messing. Cambridge: Harvard University Press, 1956. 
A Comprehensive work dealing with all aspects of grammar of classical and NT Greek. Has a bibliography and English and Greek indices. 
PA254 .S6 1956 

Story, J. Lyle and Story, Cullen I. K.  Greek To Me: Learning New Testament Greek through Memory Visualization.  San Francisco: Harper and Row, 1979. 
A very useful learning tool that makes extensive use of visual learning and association.  Illustrations and mnemonics make learning Koine Greek exciting. 
PA817. S75 1979 

Zerwick, M., and Grosvenor, M. A Grammatical Analysis of the Greek New Testament. Rev. ed. Rome: Biblical Institute Press, 1981. 
A fine analysis of major words and difficult constructions in the NT. 
BS2325 .Z47 1981 

Zerwick, M. Biblical Greek: Illustrated by Examples. Rome: Biblical Institute Press, 1979. 
This grammar is intended to be used with the author's other work above. 
PA813 .Z413