English Grammar Hub

Understand English Grammar Faster

Browse the grammar system by level and category, then open clear explanations with practical examples.

780 Total Rules
126 Chapters
7 CEFR level
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Understand English Grammar Faster

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Active filters: CEFR level: B2
B2 Gerunds & Infinitives

Senses and Sentences: Verbs of Perception

Mastering perception verbs allows you to vividly describe what you observe, capturing an action's duration or completion.

  • • Describe observed actions using your senses.
  • • `Verb + Object + Bare Infinitive` or -ing.
12 examples 8 exercises 8 FAQ
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B2 Relative Clauses

Shorten Your Sentences: Reduced Relative Clauses

Streamline your sentences by transforming longer relative clauses into punchy, efficient descriptions.

  • • Shorten relative clauses for conciseness.
  • • Remove pronoun + 'be' before '-ing' or '-ed'.
12 examples 8 exercises 8 FAQ
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B2 Verb Moods

Should Have: Past Regrets & Mistakes

Unlock how to express past regrets and wise hindsight using `should have` + past participle, just like a native speaker.

  • • Expresses past regrets or unfulfilled obligations.
  • • Formed by `should have` + past participle.
12 examples 8 exercises 8 FAQ
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B2 Grammar

Speculation and Deduction: Must Be, Can't Be, Might Be (Present)

Use must be, can't be, could be, and might be to make deductions about present situations. Must be = almost certain; can't be = impossible; might/could be = possible.

  • • must be: near-certain deduction — She must be tire...
  • • can't be: certain impossibility — That can't be ri...
5 examples 8 exercises 8 FAQ
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B2 Conjunctions & Connectors

Starting Sentences with Flow (Transition Adverbials)

Master transition adverbials to connect your ideas gracefully, enhancing clarity and sounding fluent.

  • • Transition adverbials connect sentences logically...
  • • Start sentence with adverbial, always followed by...
12 examples 8 exercises 8 FAQ
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B2 Verb Moods

Strong Conditions: 'Only If' Rules

Master 'only if' to set exclusive conditions with emphasis, remembering to invert when it starts the sentence.

  • • Exclusive condition: result happens solely if this...
  • • Form: `Only if condition, inverted main clause` (o...
12 examples 8 exercises 8 FAQ
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B2 Verb Moods

Strong Past Disbelief (Can't Have + V3)

Use `can't have + V3` to strongly conclude something *didn't* happen in the past.

  • • Expresses strong disbelief or impossibility about...
  • • Formed by `can't + have + past participle (V3)`.
12 examples 8 exercises 8 FAQ
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B2 Verb Moods

Suppose & Supposing: The 'What If' Game

Master suppose and supposing to effortlessly talk about hypotheticals and 'what if' situations.

  • • Used for 'what if' scenarios or hypotheses.
  • • Follows conditional verb tenses (past for unreal).
10 examples 8 exercises 8 FAQ
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B2 Adjectives & Adverbs

The Double Comparative: 'The more, the better'

Mastering double comparatives makes your English more precise, natural, and impactful.

  • • Connects two proportional changes: one causes the...
  • • Pattern: 'The + comparative, the + comparative'.
12 examples 8 exercises 8 FAQ
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B2 Sentence Structure

The Dummy 'It' (It's important to...)

Mastering dummy 'it' makes your English smoother, clearer, and much more natural.

  • • Dummy 'it' acts as a placeholder subject.
  • • Structure: It + verb + adjective/noun + (to-infini...
10 examples 8 exercises 8 FAQ
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B2 Sentence Structure

The More, The Better: Comparative Inversion

Connect changing ideas elegantly with 'the + comparative' for fluent, sophisticated English.

  • • Expresses direct correlation: as one changes, so d...
  • • Structure: `The + comparative + clause, the + comp...
12 examples 8 exercises 8 FAQ
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B2 Passive & Reported Speech

The Passive Infinitive: Using 'to be done'

The passive infinitive: Your key to sounding naturally sophisticated in English.

  • • Focuses on action *received* by subject, not perfo...
  • • Formed by to + be + past participle of main verb.
12 examples 8 exercises 8 FAQ
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B2 Verb Moods

Third Conditional: Contractions (I'd've known)

Mastering Third Conditional contractions like I'd've makes your English sound incredibly natural and fluent.

  • • Third Conditional contractions make speech sound n...
  • • If-clause had becomes 'd (e.g., `If I'd known`).
11 examples 8 exercises 8 FAQ
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B2 Sentence Structure

Using 'It' as a Placeholder (Anticipatory It)

Use 'It' as a placeholder to keep sentences flowing naturally and make long subjects easier to handle.

  • • It' acts as a placeholder for a later, longer subj...
  • • Structure: `It + be + adjective/noun + (for someon...
11 examples 8 exercises 8 FAQ
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B2 Verb Moods

Using 'Unless': The 'If Not' Shortcut

Unless elegantly simplifies conditional sentences by highlighting exceptions, meaning 'if not'.

  • • Unless means 'if not', introducing exceptions to a...
  • • Formed with 'unless' + present simple, followed by...
12 examples 8 exercises 8 FAQ
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B2 Verb Moods

Using 'wish' for Present Regrets

"Wish + past simple" helps you express desires for an alternate present reality or regret current states.

  • • Express dissatisfaction with current reality or co...
  • • Formed with `wish + (that) + Subject + past simple...
12 examples 8 exercises 8 FAQ
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B2 Pronouns

Using Another, Other, and The Other

Mastering 'another', 'other', and 'the other' clarifies quantities and distinctions like a pro!

  • • Another: 'an' + 'other', for one more/a different...
  • • Other/Others: Adjective for plural/uncountable, pr...
12 examples 8 exercises 8 FAQ
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B2 Gerunds & Infinitives

Verbs with Changing Meaning (Gerund vs Infinitive)

Mastering these forms prevents hilarious misunderstandings and sharpens your English precision.

  • • Verbs drastically shift meaning with gerund vs inf...
  • • Form: `verb + -ing` or `verb + to + base verb`.
12 examples 8 exercises 8 FAQ
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B2 Gerunds & Infinitives

Verbs with Gerunds Only: The -ing Club

Mastering these 'gerund-only' verbs makes your English sound natural and fluent.

  • • Certain verbs demand the gerund (verb-ing) form af...
  • • The pattern is always: Verb + Gerund (e.g., enjoy...
12 examples 8 exercises 8 FAQ
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B2 Conjunctions & Connectors

Whatever, Wherever, Whoever (Generalizing Clauses)

Mastering -ever words makes your English flexible, inclusive, and sound incredibly natural.

  • • Use -ever words to generalize: no matter who/what/...
  • • Formed by adding -ever to wh- words like who, what...
12 examples 8 exercises 8 FAQ
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B2 Relative Clauses

Whose: Showing Possession

Use whose to link ideas by showing who owns what, making sentences smooth and concise.

  • • Whose is a possessive relative pronoun.
  • • It connects a noun to a possessed noun.
12 examples 8 exercises 8 FAQ
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B2 Verb Moods

Wish + Would: Expressing Annoyance

`Wish + would` is your secret weapon for expressing annoyance at other people's frustrating habits!

  • • Express irritation at others' repeated actions.
  • • Form: Subject + wish + Subject + `would/wouldn't`...
12 examples 8 exercises 8 FAQ
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B2 Grammar

Zero and First Conditional: B2 Review and Refinements

At B2 level, zero and first conditionals extend beyond basic if/will structures: you can use when, unless, should, happen to, and imperative forms for more natural and precise expression.

  • • Zero conditional: if/when + present simple, presen...
  • • First conditional: if + present simple, will + bas...
5 examples 8 exercises 8 FAQ
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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.

Progress Faster

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

How Our English Grammar Course Works

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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.

2

Study Structured Chapters

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

3

Practice with Exercises

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

4

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Your progress is saved automatically. Complete chapters, unlock new levels, and watch your grammar mastery grow.

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.

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