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  • Basics. Conditional Conjunctions: Supposing, Provided That, and Even If

    Are you ready to move beyond basic "if" clauses? Test your advanced grammar skills by mastering nuanced conditional phrases like supposing, provided that, on condition that, even if, and but for.

    See a quick refresher inside!

    HardC1 | AdvancedClauseComplex sentenceConditional sentenceConjunctionInversionNegationPhraseQuestionsSubjunctive mood
    Start
  • Basics. Mastering Double Passive Constructions

    Ever wondered why "the file is scheduled to be deleted" sounds perfectly fine, but "the file was attempted to be deleted" is grammatically wrong? Test your advanced grammar skills on acceptable double passives, reporting verbs for rumors, and verbs that reject passive infinitives.

    See a quick refresher inside!

    HardC2 | ProficiencyComplex sentenceIndirect speechInfinitiveParticiplePast tensePhraseSentenceVerbPassive voiceVerb tensePerfect tenseSimple tense
    Start
  • Basics. Implied Conditionals: But For, Without, and Otherwise

    Can you spot a hypothetical situation when the word "if" is nowhere to be found? Navigate 10 tricky scenarios by identifying implied conditionals hidden within phrases like but for, otherwise, given, and implied subjects.

    See a quick refresher inside!

    HardC2 | ProficiencyAdverbClauseComplex sentenceConditional sentenceInfinitiveModal verbNegationParticiplePast tensePhrasePrepositionSubjectSubjunctive moodVerbVerb moodPassive voiceVerb tensePerfect tense
    Start
  • Basics. Advanced Inverted Conditionals: Should, Were, and Had

    Do you know how to drop the "if" to make your English sound more formal and dramatic? Master the art of inversion by testing your knowledge of first conditionals with should, second conditionals with were, third conditionals with had, and complex mixed conditionals.

    See a quick refresher inside!

    HardC1 | AdvancedComplex sentenceConditional sentenceImperative moodInfinitiveInversionModal verbNegationSubjunctive moodVerb moodVerb tensePerfect tenseWord order
    Start
  • Condition Clauses: If, Unless, and Provided That

    Do you know when a strict rule requires provided that or when to use unless instead of if not? Master the logic of condition clauses by navigating quirky scenarios with time travelers, secret agents, and eccentric professors. Test your grasp of if, unless, and provided that across 12 interactive questions.

    See a quick refresher inside!

    MediumB1 | IntermediateB2 | Upper IntermediateClauseComplex sentenceConditional sentenceConjunctionFuture tenseNegation
    Start
  • Contrast Clauses: Although, However, and Though

    Do you know when to use a semicolon before however, or when to drop though at the end of a sentence? Master the tricky punctuation and placement of contrast clauses by navigating savage restaurant reviews, passive-aggressive roommate notes, and clumsy burglars.

    See a quick refresher inside!

    MediumB1 | IntermediateB2 | Upper IntermediateAdverbClauseComplex sentenceConjunctionPrepositionPunctuationSemicolonSentenceWord order
    Start
  • Adverb Clauses of Reason: Because, Since, and As

    Why did the time traveler arrive three centuries late? Master explaining why things happen by testing your knowledge of adverb clauses of reason, distinguishing because vs. because of, applying correct punctuation rules, and identifying reason vs. time contexts.

    See a quick refresher inside!

    MediumB1 | IntermediateB2 | Upper IntermediateAdverbClauseCommaComplex sentenceConjunctionPhrasePrepositionPunctuation
    Start
  • Adverb Clauses of Time: When, Before, After, Until

    When do you stop whisking? Until your arm goes numb, obviously. Master the timing of events by choosing the right time conjunctions, applying correct verb tenses in future time clauses, and sequencing past events properly.

    See a quick refresher inside!

    MediumB1 | IntermediateB2 | Upper IntermediateAdverbClauseCommaComplex sentenceConjunctionImperative moodPast tensePresent tensePunctuationVerb tensePerfect tenseSimple tense
    Start
  • Basics. Conjunctions.

    Conjunctions are key elements in English, connecting words, phrases, and sentences. Common conjunctions include "and," "but," and "or." They join language blocks like words, phrases, and sentences, and help create compound and complex sentences.

    See a quick conjunctions refresher inside!

    EasyA1 | Elementary | BeginnersConjunctionCoordinationComplex sentenceCompound sentenceEnglish Grammar Basics
    Start
  • Basics. Common More Complex Questions.

    Master more complex common question types, such as "Who...? / What...? / Where...? / Which...?" with prepositions at the end, "What + noun" and "Which + noun" questions, questions about duration, and complex sentence questions.

    See a quick refresher inside!

    EasyA2 | Elementary | Pre-intermediateA1 | Elementary | BeginnersComplementSubjectObjectPredicatePrepositionPronounAdjunctNounQuestionsAuxiliary verbVerbNegationComplex sentenceEnglish Grammar Basics
    Start
  • Complex Sentence: Adverbials

    There are five types of subordinate clauses in English: the subject, the predicative, the attributive, the object and several types of adverbial clauses.

    Adverbials happen to be the thing this challenge is about.

    MediumB1 | IntermediatePhraseAdverbDependent clauseComplex sentenceClause
    Start
  • Complex Sentence

    There are five types of subordinate clauses in English: the subject, the predicative, the attributive, the object and several types of adverbial clauses.

    In English grammar, all the clauses are subdivided into three main groups: noun clauses, adjective clauses and adverb clauses.

    The Noun clauses include three types of subordinate sentences such as the subject clause, the predicative clause and the object clause. Usually in subordinate clauses we use the direct word order but in some cases we may face a particular version of inversion. Also, different subordinate clauses need to be introduced by different introductory words which cannot be omitted.

    Try the challenge to figure out what all this is about!

    MediumB1 | IntermediateClauseRelative clauseIndependent clauseDependent clauseComplex sentenceSentence
    Start
  • Basics. Advanced Participle Clauses: -ing and -ed

    Ever wondered how to fix a "dangling participle" before it ruins your writing? Master advanced sentence structures by practicing -ing and -ed participle clauses, identifying dangling modifiers, and using passive perfect participles to connect ideas seamlessly.

    See a quick refresher inside!

    HardB2 | Upper IntermediateClauseComplex sentenceNegationParticiplePhraseRelative clauseSentenceSubjectVerbPassive voicePerfect tense
    Start
  • Basics. Reduced Relative Clauses: Participles and Infinitives

    Why write "the alien who was stranded" when you can simply say "the alien stranded"? Master concise writing by testing your knowledge of active and passive participle phrases, stative verb reductions, and infinitive relative clauses across 10 challenging questions.

    See a quick refresher inside!

    HardB2 | Upper IntermediateClauseComplex sentenceInfinitiveParticiplePhraseRelative clauseVerbPassive voice
    Start
  • Basics. Defining vs. Non-defining Relative Clauses

    Did you know that a single missing comma can completely change the meaning of a sentence? Test yourself on essential vs. non-essential information, proper comma placement, and choosing the correct relative pronouns across a variety of fun scenarios.

    See a quick refresher inside!

    MediumB1 | IntermediateClauseCommaComplex sentencePronounPunctuationRelative clause
    Start
  • Basics. Fronted Prepositions in Relative Clauses

    Do you know when to use "the manager to whom I spoke" instead of "the manager who I spoke to"? Master the strict formal register by practicing fronted prepositions, relative pronouns like whom and which, and complex prepositional phrases.

    See a quick refresher inside!

    HardB2 | Upper IntermediateClauseComplex sentencePhrasePossessivePrepositionPronounRelative clauseSubjectWord orderCollocations
    Start
  • Basics. Advanced Relative Pronouns: Whose, Whom, Where, When, and Why

    Struggling to decide between "who" and "whom" in formal writing? Master the intricacies of object relative pronouns (whom), possessive relative pronouns (whose), and relative adverbs (where, when, why) in this engaging 11-question challenge.

    See a quick refresher inside!

    MediumB1 | IntermediateAdverbApostropheClauseComplex sentenceObjectPossessivePrepositionPronounRelative clause
    Start
  • Basics. Reported Speech: Tense Choice and Backshifting

    Did he say he is leaving or was leaving? Master the nuances of reporting what others say by practicing tense backshifting, identifying exceptions for general truths and present reporting verbs, and fixing indirect question word order.

    See a quick refresher inside!

    HardB2 | Upper IntermediateAdverbClauseComplex sentenceFuture tenseIndirect speechModal verbNegationPast tensePresent tenseQuestionsSentenceVerbVerb tensePerfect tenseProgressive tenseWord order
    Start
  • Forming Questions: Indirect, Tag, and Subject Forms

    Do you know why we ask "Who ate the cake?" instead of "Who did eat the cake?" Master the tricky rules of English interrogatives by testing yourself on subject questions, polite indirect questions, tag questions, and dangling prepositions.

    See a quick refresher inside!

    MediumB1 | IntermediateB2 | Upper IntermediateAuxiliary verbClauseComplex sentenceIndirect speechIrregular verbNegationObjectPast tensePhrasal verbPrepositionPresent tensePronounQuestionsSubjectVerbVerb tensePerfect tenseProgressive tenseSimple tenseWord orderCollocations
    Start
  • Word Order and Extra Words Errors for Turkish Speakers

    Do you say discuss the plan or discuss about the plan? Test your ability to spot and remove unnecessary words by mastering transitive verbs without prepositions, avoiding double subjects, and dropping extra pronouns in relative clauses across 14 questions.

    See a quick refresher inside!

    MediumB1 | IntermediateB2 | Upper IntermediateAuxiliary verbClauseComplex sentenceConjunctionInfinitiveNounObjectPast tensePhrasePrepositionPresent tensePronounRelative clauseSentenceSubjectVerbSimple tenseWord orderCollocations
    Start
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