The following are New Testament Greek grammars that I recommend. This includes both beginning and intermediate biblical Greek grammars. See also here my list of recommend Greek New Testament lexicons/dictionaries.
*Links are to Amazon
New Testament Greek Grammars
Reading Koine Greek: An Introduction and Integrated Workbook by Rodney J. Decker
Fundamentals of New Testament Greek by Stanley E. Porter, Jeffrey Reed, and Matthew Brook O’Donnel
Fundamentals of New Testament Greek: Workbook by Stanley E. Porter and Jeffrey T. Reed
Idioms of the Greek New Testament by Stanley E. Porter
*The following descriptions are of the recommended New Testament Greek grammars noted above:
Reading Koine Greek: An Introduction and Integrated Workbook by Rodney J. Decker
“This in-depth yet student-friendly introduction to Koine Greek provides a full grounding in Greek grammar, while starting to build skill in the use of exegetical tools. The approach, informed by twenty-five years of classroom teaching, emphasizes reading Greek for comprehension as opposed to merely translating it. The workbook is integrated into the textbook, with exercises appearing within each chapter rather than pushed to the end or located in a separate book. This enables students to practice concepts as they encounter them in the chapter–ideal for distance learning or studying beyond the traditional classroom. The book covers not only New Testament Greek but also the wider range of Bible-related Greek (LXX and other Koine texts). It introduces students to reference tools for biblical Greek, includes tips on learning, and is supplemented by robust web-based resources through Baker Academic’s Textbook eSources. Resources for students include flash cards and audio files. Resources for professors include a test bank and an instructor’s manual.”
“This intermediate grammar for students of New Testament Greek incorporates the advances of recent linguistic research in an accessible and understandable way. Drawing on years of teaching experience at a leading seminary, the authors help students extend their grasp of Greek for reading and interpreting the New Testament and related writings. They make extensive use of New Testament texts to illustrate each grammatical category. Long enough to provide substantial help yet concise enough for frequent practical use, this book is ideal for intermediate Greek and Greek exegesis classes. It is also a valuable resource for preachers and others.”
Fundamentals of New Testament Greek by Stanley E. Porter, Jeffrey Reed, and Matthew Brook O’Donnel
Fundamentals of New Testament Greek: Workbook by Stanley E. Porter and Jeffrey T. Reed
“This extremely useful volume is a comprehensive introduction to the grammar and vocabulary of the Greek of the New Testament, with extensive paradigms, examples, and explanations. / Porter, Reed, and O’Donnell’s Fundamentals of New Testament Greek makes use of pedagogically sound and linguistically informed language-instruction techniques to provide the most effective textbook possible. The book introduces the individual elements of the Greek language according to their frequency of use in the New Testament so as to reinforce in students the elements that they will most often encounter. Every grammatical element is explained in sufficient detail ― including illustrative examples ― and is accompanied by useful information to describe its composition and analysis. The authors also include complete paradigms with plenty of examples, and significant vocabulary is introduced throughout the course of the volume. / Students who complete this text can engage in serious reading, translation, and understanding of the Greek New Testament, moving directly into Greek exegesis courses and more advanced Greek-language courses. Fundamentals of New Testament Greek: First Year will prove invaluable for gaining a thorough foundational understanding of New Testament Greek. It is bound to be a standard text for years to come.”
Idioms of the Greek New Testament by Stanley E. Porter
“The Greek grammar, newly revised and reset for the second edition, which is also available in paperback, can be used as an instructive handbook, as an intermediate level textbook and as a basic reference work to New Testament Greek. The major topics of Greek grammar are treated in a useful pedagodical sequence. Among the innovative treatments are those on tense and aspect, Mood and Attitude, conditional clauses, word order and clause structure, and discourse analysis. The grammar takes account both of the traditional categories of Greek grammar and of recent discussions on structural linguistics.”