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  • 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
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  • 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
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  • 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
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