Good storytelling uses three past tenses together: past simple (main events), past continuous (background/interrupted actions), and past perfect (things that happened before the story started).

• Past simple: the main events of the story in order...
• Past continuous: background actions in progress —...

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B1 Verb Moods

Must: Strong Obligation & Necessity

Must conveys undeniable obligation or necessity, making your statements clear and impactful.

• Use must for strong obligation or necessity.
• Form: Subject + must + base verb (no to, no -s).

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B1 Grammar

Needn't, Don't Need To, Didn't Need To, Needn't Have

These four forms all express no necessity, but differ in tense and whether the action was done. Needn't have = it was done, but it was unnecessary. Didn't need to = it wasn't necessary (may or may not have been done).

• needn't + base verb: no necessity now/future — You...
• don't need to: same meaning, more common in everyd...

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B1 Passive & Reported Speech

Passive Voice: Basic Formation (be + V3)

Mastering be + V3 unlocks powerful ways to shift sentence focus and communicate effectively.

• Focus on action/receiver, not the doer.
• Formed with be verb + past participle (V3).

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B1 Passive & Reported Speech

Past Simple Passive: What Happened to It?

Past Simple Passive highlights what *was done* to the subject, great for focusing on outcomes or events.

• Focuses on past actions received by the subject.
• Formed with `was/were` + past participle (V3).

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Why Learn English Grammar?

Grammar is the foundation of language fluency. Without understanding grammar patterns, you can memorize vocabulary but struggle to form correct sentences. Here's why structured grammar study matters:

Build Accurate Sentences

Move beyond memorized phrases. Understand the rules so you can create original, correct sentences in any situation.

Pass Language Exams

Grammar is tested in every major language exam — IELTS, DELE, DELF, JLPT, HSK, TOPIK, and more. Our CEFR-aligned curriculum maps directly to exam requirements.

Understand Native Speakers

Knowing grammar helps you parse complex sentences, understand nuance, and follow conversations even when speakers use advanced constructions.

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Students who study grammar systematically reach fluency faster than those who rely on immersion alone. Structure accelerates learning.

How Our English Grammar Course Works

Choose Your Level

Start with your CEFR level — from A0 Zero Point to C2 Mastery. Not sure? Begin at A0 and progress at your own pace.

Study Structured Chapters

Each chapter covers a grammar topic with clear explanations, pattern tables, and real-world example sentences.

Practice with Exercises

Test your understanding with interactive exercises — fill-in-the-blank, multiple choice, sentence building, and translation practice.

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Frequently Asked Questions About English Grammar

SubLearn covers 780 English grammar rules organized across 7 CEFR proficiency levels (from A0 to C2), spanning 126 structured chapters. Each rule includes clear explanations, real-world examples, and interactive practice exercises.

Our English grammar curriculum covers CEFR levels from A0 to C2. Each level is designed to match your current proficiency — beginners start with basic sentence patterns at A1, while advanced learners tackle nuanced structures at C1-C2.

Yes! All English grammar rules, explanations, and examples are completely free to access. You can browse the full curriculum, read detailed explanations, and practice with exercises at no cost.

Grammar is organized into 126 thematic chapters following the CEFR framework. Each chapter groups related rules together — for example, verb tenses, sentence structure, or particles — so you can learn related concepts in a logical sequence.

Yes! Create a free account to track which grammar rules you've studied, see your progress across all CEFR levels, and pick up exactly where you left off. Your learning progress syncs across devices.