Sharpen Your English Grammar

Whether you're preparing for a language exam, polishing your writing, or simply curious about the finer points of English grammar — you're in the right place. Our CEFR-based grammar test adapts each time you take it, giving you a fresh set of questions and targeted feedback on where you shine and where you can grow.

Prefer to focus on specific topics? Browse our practice challenges, each one built around a grammar topic and tagged by category and difficulty. Every question comes with a clear explanation — so you don't just find out what's right, you understand why.

Looking for something specific? Jump straight to verb tenses, IELTS preparation, or explore the tag tree below to find exactly the topic you need.

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Challenges by tag

CEFR levels
Difficulty
English grammar
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More about the tags

The English Grammar tree breaks topics down by grammatical category — from determiners to verb tenses and everything in between. Our taxonomy overview explains how we organized it all. The categories are not set in stone— we continue refining them to be as useful as possible.

CEFR stands for the Common European Framework of Reference for Languages — a widely-used standard for benchmarking language ability from beginner (A1) to mastery (C2).

Difficulty Levels reflect the content authors' judgment of how challenging each question is, so you can start easy and work your way up.

What's New

March 19, 2026 — Fix Mistakes from Your Native Language:

Struggling with English mistakes that come straight from your native language? These challenges target the specific errors caused by first-language interference — so you practice exactly what trips up speakers of your language.

  • Articles Bootcamp for Romance Speakers Speakers from Spain, France, Italy, Portugal, Brazil, Mexico, Colombia, and Argentina: your language uses articles differently, and it shows. The life is beautiful or just Life is beautiful? She is doctor or She is a doctor? Master when English drops the (abstract nouns, country names, fixed expressions like go to bed) and when it demands a/an (professions, first mentions) through 11 country-themed scenarios.

  • Prepositions Romance Speakers Mix Up In Spanish and Portuguese, en covers in, on, and at — so which one do you use for 6 pm, Monday, or March? And is it since three years or for three years? Fix the most common preposition mix-ups for learners from Spain, France, Italy, Brazil, Mexico, Argentina, Portugal, and Colombia across 12 real-life scenarios.

  • Past Simple vs Present Perfect for Romance Speakers I have seen him yesterday — sounds right in Spanish or French, but it's wrong in English. Romance speakers from Spain, France, Italy, Brazil, Mexico, Argentina, Portugal, and Colombia confuse these tenses because their compound past works differently. Master the time-marker test (yesterday = past simple, ever/since = present perfect) across 12 scenarios.

  • English Word Order for Turkish Speakers Turkish puts verbs at the end and has no embedded question inversion — so I don't know where is he feels natural but is wrong. Learners from Turkey, Istanbul, Ankara, and Izmir: fix embedded question word order, adjective-before-noun placement, and verb patterns like explain the problem to me (not explain me) across 12 questions.

  • Prepositions and Articles for Turkish Speakers Turkish has zero articles and uses suffixes instead of prepositions — a double gap in English. Learners from Turkey, Istanbul, Ankara, Izmir, and Antalya: practice choosing in/on/at for places, adding the/a where Turkish uses nothing, and nailing adjective+preposition pairs like good at, interested in, and afraid of across 12 scenarios.

  • The Big 3 for Vietnamese Speakers: Articles, Plurals, and Verb Tense Vietnamese has no articles, no plural markers, and no verb conjugation — three gaps at once. Learners from Vietnam, Ho Chi Minh City, Hanoi, and Da Nang: practice adding a/an/the, remembering plural -s after numbers, and marking verb tense (was/went/goes) across 12 everyday scenarios.

  • Slavic Speakers' Top Errors: Articles, Prepositions, and Pronouns No articles in your language? You're not alone — learners from Poland, Czech Republic, Russia, Ukraine, Serbia, Croatia, Bulgaria, and Slovakia all share this gap. Plus, your grammatical gender makes you say My car is new. She is fast instead of It is fast. Fix missing articles, wrong prepositions (interested in, not for), and pronoun it for objects across 12 questions.

  • High-Frequency Grammar Fixes for India Learners She go to office every day and I did not saw him — sound familiar? Learners from India, Mumbai, Delhi, Bangalore, Chennai, Kolkata, and Hyderabad: tackle third-person -s agreement, base verb after did, uncountable nouns (advice, not advices), and stative verbs (I know, not I am knowing) across 12 scenarios.

  • Mistakes Even Native Speakers Make The cat licked it's paw — even native speakers in the UK, USA, Canada, Australia, New Zealand, and Ireland get this wrong daily. Master it's vs its, fewer vs less, and affect vs effect — the three most common writing errors that make even fluent English look sloppy — across 11 proofreading scenarios.

  • EU Learners' Tricky Set: Word Order, Prepositions, and False Friends Learners from Germany, France, Austria, Switzerland, Belgium, and the Netherlands: actually doesn't mean currently, and I look forward to hear from you needs hearing, not hear. Fix false friends (actually, eventually, sensible), adverb placement (I always drink not I drink always), and suggest + gerund patterns across 12 scenarios.


March 19, 2026 — New Challenges:

  • Condition Clauses: If, Unless, and Provided That If you will come early, we can start — spot the mistake? After if, English uses present simple for future conditions, never will. And did you know unless already contains the negation, so unless you don't hurry is a double negative? Master if + present simple, unless = if...not, and formal condition markers like provided that and as long as across 12 scenarios featuring time travelers, secret agents, and a landlord's unusual pet llama agreement.

  • Contrast Clauses: Although, However, and Though The food looked terrible; however, it tasted great — do you know why that semicolon matters? Contrast words like although, however, and though each follow different punctuation and placement rules. Practice putting them in the right spot while writing savage restaurant reviews, decoding passive-aggressive roommate notes about a neon green sofa, and explaining why your homework is missing (your cat walked across the keyboard).

  • Do vs. Make: School and Studying Collocations Are you making your homework or doing your homework? These two verbs trip up learners at every level. Master essential school collocations like do homework, make a mistake, do an exam, make progress, and make friends through 11 fun scenarios including classic excuses for missing assignments and end-of-year report cards.

  • Make vs. Do: Core Collocations Why do we make a mess but do the dishes? In many languages these are the same word, but English has rules: do for tasks and obligations, make for creating something new. Practice 13 core collocations like do a favor, make a cup of tea, do the laundry, and make an apology — featuring a dramatic camper, a dog who hates homework, and roommates arguing about dishes.

March 12, 2026 — New Challenges:

March 10, 2026 — New Challenges:

March 8, 2026 — New Challenges:

  • Polite Requests: Could You vs. Would You Mind Is it Could you to help me? or Could you help me? — and why does Would you mind wait sound wrong? Master could you + base verb requests, the would you mind + gerund pattern, and negative polite requests like Would you mind not tapping? through 15 real-life scenarios from airplane seats to roommate negotiations.

  • Offers and Orders: Would You Like and I'll Have Do you like some tea or would you like some tea? One is a general preference, the other is a polite offer right now. Master would you like + noun for offers, would you like to + verb for invitations, and the ordering idiom I'll have through 15 interactive questions set in cafés, dinner parties, and even a wizard's tavern.

  • Adverb Clauses of Time: When, Before, After, Until When I will finish, I'll text you — spot the mistake? After time conjunctions like when, before, after, until, and as soon as, English uses the present simple for future events, never will. Practice the no-will-in-time-clauses rule across 15 scenarios featuring spies, time travelers, and chaotic chefs.

  • Adverb Clauses of Reason: Because, Since, and As Because it was raining. We stayed home. — two sentences or one? Master reason clauses with because, since, and as, learn the difference between because vs. because of, and fix common fragment errors and punctuation mistakes through 14 questions involving detectives, heists, and bewildered aliens.

March 6, 2026 — New Challenges:

March 3, 2026 — New Challenges:

February 28, 2026 — New Challenges:

February 21, 2026 — New Challenges:

  • Core Verb and Preposition Combinations Do you depend of or depend on? Fixed verb–preposition pairs like insist on, listen to, and apologize for trip up even advanced learners. Build accuracy with these essential collocations and stop translating from your native language.

  • Subjunctive and Conditional Adventures Wishes, hypotheticals, and "what if" scenarios — master the subjunctive mood and conditional sentences through creative stories involving time travel, wizards, and raccoons. Perfect for leveling up from basic to confident B1 grammar.

  • Quantifiers: Much, Many, and a Lot of Struggling to choose between much, many, and a lot of? This easy-level challenge helps you nail the difference between countable and uncountable nouns so you stop second-guessing yourself in everyday conversations and writing.

  • Transitive vs. Intransitive: High-Impact Verbs Saying discuss about or enter into? These sneaky errors come from translating directly from your native language. Master high-impact transitive and intransitive verbs like lay/lie, raise/rise, and discuss/contact to sound natural and confident.

February 14, 2026 — New Challenges:

  • Participle Clauses Want to write tighter, more elegant sentences? Participle clauses let you merge two ideas into one — using -ing for simultaneous actions and having + past participle for completed ones. Essential for B1+ writing.

  • Gerund vs. Participle: -ing Word Functions Every -ing word looks the same, but swimming can be a noun, an adjective, or part of a verb. Learn to tell gerunds from participles so you can parse and build sentences with confidence.

  • Determiners: Some, Any, Few, and Little Is it a few or few? Some or any? These small words dramatically change your meaning. Master the subtle differences so you say exactly what you intend — whether you're being positive, negative, or making an offer.

  • Articles — A, An, The & Zero Article Do you know why we say "an hour" but "a university"? Our newest challenge walks you through a/an sound rules, the vs. zero article, and first vs. second mention across 14 real-world scenarios. Give it a try!

February 8, 2026 — New Challenges:

  • Verb + Object + Infinitive Patterns "I want you to try" or "She made him laugh" — some verbs need to, others don't. Learn the verb + object + infinitive pattern with verbs like ask, tell, allow, let, and make to build accurate complex sentences.

  • Stop, Remember, and Try — Gerund or Infinitive? "I stopped smoking" vs. "I stopped to smoke" — completely different meanings! Master how stop, remember, and try change their meaning depending on whether a gerund or infinitive follows.

  • Gerund vs. Infinitive with Common Verbs Do you enjoy to read or enjoy reading? Picking the wrong form after verbs like avoid, suggest, decide, and want is one of the most common English mistakes. Fix it once and for all.

  • Gerund vs. Infinitive after Adjectives "Happy to help" or "tired of waiting"? The rules for choosing gerunds and infinitives after adjectives aren't random — learn the patterns so expressions like worth trying and afraid of failing come naturally.

January 31, 2026 — New Challenges:

  • Advanced Conditionals and "Wish" Ready to go beyond basic if-clauses? Tackle mixed conditionals, nuanced wish structures, and regret patterns that will make your English sound polished and precise in both writing and conversation.

  • Conditionals and "Wish" "If I would know..." — sound familiar? Learn to use conditionals and wish correctly so you can talk about hypothetical situations, regrets, and desires without the classic mistakes that trip up most learners.