The English Grammar Workbook for Adult,s

Not sure if this is the right fit?

Consider English Grammar for Dummies by Geraldine Woods.

“This reads like a patient classroom primer: short chapters, plain language, and lots of examples aimed at resolving everyday grammar confusion. Its most useful function is as a quick-reference and refresher—rules, tips, and tricks are presented in checklists and concrete sentences rather than jargon. Limitations surface if you want linguistic theory, usage history, or rigorous debate about contested forms; the text favors straightforward, prescriptive answers and occasionally repeats points to aid readers who skim. Not a deep-dive resource.”