Why do we say "time is an illusion" but "a terrifying silence"? Master the tricky exceptions of uncountable concepts by practicing zero articles for general ideas, definite articles for specified nouns, and indefinite articles for modified abstract nouns.

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Do you know whether to write "It is I who is" or "It is I who am"? Test your advanced syntax skills by mastering pronoun and verb agreement, emphasizing prepositional phrases, and structuring complex adverbial and negative time clauses.

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Do you know whether to write "I leave my fortune to whoever" or "to whomever" when it follows a preposition? Master advanced pronoun cases by testing yourself on whoever vs. whomever, what vs. that, and tricky verb agreement within nominal relative clauses.

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Do you know how to link sentences using words like some, none, or half without creating a dreaded comma splice? Test your advanced grammar skills by mastering quantifiers with relative pronouns, choosing correctly between whom, which, and the tricky possessive whose.

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Want to add a dramatic, native-level flair to your English sentences? Test your advanced grammar skills by mastering standard wh-clefts, reversed wh-clefts, action-focused cleft structures, and pseudo-clefts.

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Do you say "I am teacher" or "I am a teacher"? Master these tricky rules by testing your knowledge on professions, abstract nouns, generalizations, and specific vs. general contexts.

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Do you know when to use a comma with which, or when that is grammatically forbidden? Master your sentence-building skills by practicing defining and non-defining relative clauses, pronouns for people vs. things, and prepositions before relative pronouns.

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Did you know that a single comma can turn a harmless sentence into a cannibalistic threat? Test your punctuation skills by exploring restrictive vs. non-restrictive relative clauses, essential vs. non-essential information, and the vocative comma for direct address.

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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.

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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.

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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.

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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.

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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.

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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.

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This English grammar quiz is designed to check if an English learner is at B2/Upper Intermediate CEFR level.

This quiz is designed to test your knowledge of English grammar and vocabulary on an upper-intermediate level, as per the Common European Framework of Reference (CEFR) guidelines. It will cover a wide range of topics such as verb tenses, relative clauses, modal verbs, and adjective and adverb clauses, as well as testing your ability to understand and use complex grammar structures.

After taking the quiz, learners would be able to see where they stand in terms of their English proficiency and if they are ready to move to the next level. Passing the challenge indicates the control of English grammar enough to move to the next level.

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.

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