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Common Grammar Mistakes book cover

Offline HTML · Interactive practice

GRAMMAR & USAGE

Common Grammar Mistakes

By Teacher Kayla Mari · KagPlus+ Learning

Understand the small choices that change your meaning. Explore common grammar, spelling and usage issues through clear explanations and original practice.

Five-point quizzesWorks offlinePrint-friendly

Free edition

30 rules, contrasting examples and 150 unique questions.

Complete edition US$3.99

60 rules and 300 unique questions, including tenses, verb patterns, pronouns and sentence structure.

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One-time payment with PayPal. Download the HTML, open it in your browser, and practise offline.

CHOOSE YOUR EDITION

Learn the rule. Try it in context.

Common Grammar Mistakes editions
What's insideFreePaid
Rules with short definitions and contrasting examples3060
Unique multiple-choice questions150300
Score out of five, feedback and retry per rule✓✓
Quantities, articles, word choice and prepositions✓✓
Verb patterns, tenses, pronouns and sentence structure—✓
Searchable contents, offline HTML, Print / Save as PDF✓✓

A LOOK INSIDE

A few words. A different meaning.

01

A few vs few

“I have a few contacts, so I can ask for help.” Compare: “I have few contacts, so finding help is difficult.” A few emphasizes some; few emphasizes scarcity.

02

On behalf of vs in behalf of

Learn how these phrases express representation or support. In behalf of is an accepted US variant; the lesson explains usage without treating every regional difference as an error.

03

Five fresh questions

Choose the best answer in each new context, check your score out of five, review the feedback and retry. Every lesson has different practice sentences.