Grammar is the foundation of clear communication. Mastering grammar helps you write correctly, speak confidently, and pass exams like IELTS, TOEFL, and Cambridge. This guide reviews every major grammar topic from beginner (A1) to advanced (C1).
💡 Start with the Diagnostic Test to find your weak areas, then review the topics you need.
📖 2. Parts of Speech Overview
Noun: person, place, thing, idea (dog, London, happiness) Pronoun: replaces a noun (I, you, he, she, it, we, they) Verb: action or state (run, is, think) Adjective: describes a noun (happy, red, large) Adverb: describes a verb, adjective, or another adverb (quickly, very, well) Preposition: shows relationship (in, on, at, for, with) Conjunction: connects words or clauses (and, but, or, because, although) Interjection: expresses emotion (Wow! Oh! Ouch!)
🏗️ 3. Sentence Structure
Simple: One independent clause. (I like coffee.) Compound: Two independent clauses joined by a conjunction. (I like coffee, but she likes tea.) Complex: One independent clause + one dependent clause. (I like coffee because it wakes me up.) Compound-Complex: Two independent clauses + one or more dependent clauses.
Zero conditional (facts): If + present simple, present simple.
If you heat ice, it melts.
First conditional (real possibilities): If + present simple, will + base verb.
If it rains, I will stay home.
Second conditional (unreal present/future): If + past simple, would + base verb.
If I won the lottery, I would travel the world.
Third conditional (past unreal): If + past perfect, would have + past participle.
If I had studied, I would have passed the exam.
Mixed conditional: If + past perfect, would + base verb.
If I had taken that job, I would be rich now.
🔄 6. Active vs Passive Voice
Active: The chef cooks the meal. (subject does the action) Passive: The meal is cooked by the chef. (subject receives the action) Passive formation: be + past participle. Changes by tense: present simple (is cooked), past simple (was cooked), present perfect (has been cooked), etc.
🗣️ 7. Reported Speech (Indirect Speech)
Direct: "I am tired," she said. Reported: She said (that) she was tired. Tense changes: present → past, past → past perfect, will → would, can → could. Pronoun changes: "I" → she/he, "we" → they, etc. Time changes: now → then, today → that day, tomorrow → the next day.
🔗 8. Relative Clauses
Defining relative clause (essential): The book that I read was interesting. (no commas) Non-defining relative clause (extra info): My brother, who lives in Paris, is a doctor. (with commas) Relative pronouns: who (people), which (things), that (people or things), where (places), when (times), whose (possession).
⚠️ 9. Common Grammar Errors
❌ I am agree. → ✅ I agree.
❌ She go to school. → ✅ She goes to school.
❌ If I would have known → ✅ If I had known
❌ Me and John went → ✅ John and I went
❌ Its raining → ✅ It's raining
❌ There car is red → ✅ Their car is red
📌 10. How to Use This Grammar Series
Take the Diagnostic Test (100 questions) to find your weak topics.
Review the topic guides: Grammar Review, Tense Review, Conditionals Review.
Practice with mixed exercises and worksheets.
Test yourself with the final mastery test.
❓ Frequently Asked Questions
Q1.What order should I learn grammar topics?▼
Start with parts of speech → sentence structure → present tenses → past tenses → future tenses → conditionals → passive voice → reported speech → relative clauses. Use the diagnostic test to identify your weak areas first.
Q2.How can I practice grammar effectively?▼
Use mixed exercises (not just one topic at a time). Write your own sentences. Get feedback from a teacher or language exchange partner. Take timed quizzes to improve accuracy.
Q3.What's the difference between active and passive voice?▼
Active voice: subject does the action ('The dog bit the man'). Passive voice: subject receives the action ('The man was bitten by the dog'). Passive is used when the doer is unknown or less important.