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.

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Do you know how to express an unfulfilled plan from the past or calculate exact durations leading up to a future deadline? Test your advanced grammar skills by mastering the future perfect continuous, future in the past, and nuanced expectation phrases like bound to and on the verge of.

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Do you know when to use got caught instead of was caught, or why a theory is understood rather than got understood? Challenge yourself with complex sentence structures, including dynamic get-passives, causative delegation, and adversative passives for describing unexpected misfortunes.

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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.

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Do you know the difference between an action that shouldn't have been done and one that needn't have been done? Put your advanced grammar skills to the test with continuous deductions, passive obligations, and unnecessary past actions.

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Why do we say "I demand that he be fired" instead of "is fired"? The formal subjunctive mood ignores standard conjugation rules to express urgency, necessity, or strict demands. Test your advanced grammar skills by applying the active and passive subjunctive, negative subjunctive forms, and the continuous subjunctive.

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Verb forms show tense, voice, mood, or other grammatical features, with regular and irregular verbs. Regular verbs follow a pattern by adding -ed for past simple and past participle forms. Irregular verbs have unique forms, including essential auxiliary verbs "be," "have," and "do." Examples of common irregular verbs are "go," "write," "sing," and "swim."

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The Passive Voice emphasizes the action or receiver, using the verb to be and the past participle of the main verb. It can be formed in different tenses, including continuous and perfect. Negative sentences add not after the verb to be, while questions invert the subject and the verb to be.

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Test your Fluency Boost: Opinions, Academic Discourse & Adverb+Adjective Collocations skills with 24 questions at medium level.

Did you cut your own hair, or did you have it cut? Master the art of delegating tasks by practicing the causative structure, focusing on the have/get something done pattern across various verb tenses.

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Ready to drop the if and sound like a highly advanced English speaker? Test your mastery of formal grammar by practicing third conditional inversion with had, second conditional inversion with were, and first conditional inversion with should.

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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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Do you know how to state a strict rule without saying exactly who must follow it? Test your ability to construct the passive voice with modal verbs, form negative rules like must not be touched, and express possibilities with might be seen.

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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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Do you know the difference between "it is said that he escaped" and "he is said to have escaped"? Master advanced English sentence construction by practicing impersonal passive structures, perfect infinitives, and continuous infinitives alongside common reporting verbs.

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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.

All English verbs are divided into three big groups of transitive, intransitive and linking verbs. The belonging to one of these groups influences the choice of the object the verb may be followed by: direct, indirect, indirect without a preposition, prepositional object or the complex object. Another reason to know about "transitivity/intransitivity" of a verb is to be able to use the verb in the passive voice. In addition, some verbs such as get, grow, keep, look, and alike, can be also link verbs that will strongly influence the meaning of a sentence.

Master transitive vs. intransitive verbs and avoid common errors like discuss about or enter into. Stop adding unnecessary prepositions with high-impact verbs like discuss, reach, enter, and contact!