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 Future Simple, Future Continuous, and Future Perfect tenses express actions or events in the future. Future simple describes an action's occurrence, future continuous highlights its ongoing nature, and future perfect emphasizes its completion by a specific time. These tenses are formed using different auxiliary verbs: "will/shall" for future simple, "will be/shall be" for future continuous, and "will have/shall have" for future perfect. Negative sentences and questions involve placing "not" after the auxiliary or inverting the auxiliary and subject, respectively.

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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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Modal verbs are auxiliary verbs that convey necessity, possibility, permission, or ability. They include "might," "may," "can," "could," "must," "should," and "have to." Modals have various uses, such as expressing possibility, knowing how to do something, asking for help, or indicating necessity. To negate a sentence with a modal verb, simply add "not" after the modal verb.

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This challenge focuses on Intermediate English level collocations. Collocations are natural-sounding word combinations, such as "lost and found," "rush hour," and "private property." Understanding collocations helps language learners sound more fluent in speaking and writing.

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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.

Adverbials happen to be the thing this challenge is about.

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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This challenge tests your ability to choose between gerunds and infinitives after common adjectives. Practice with expressions like "happy to help," "tired of waiting," and "worth trying."

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This challenge tests your understanding of gerunds and infinitives after common English verbs. Practice choosing between the -ing form and the to + verb form with verbs like enjoy, want, avoid, and decide.

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This challenge tests your ability to distinguish between gerunds (functioning as nouns) and participles (functioning as adjectives or verb parts). Analyze -ing words in context to determine their grammatical role in each sentence.

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Practice using participle clauses to create more concise sentences. This challenge covers both -ing participles for simultaneous actions and having + past participle for completed actions.

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In English there are some verb constructions having special indirect meaning, such as used to, would, get used to, get doing, be to do, happen to do, be going to do something, be about to do something etc.

For example “I would go swimming to the swimming pool in my childhood” – means that in the past I went to swim periodically but now I don’t go swimming anymore...

These constructions help to add different shades to the main meaning of a sentence without wordy explanations. Now, how about getting answering the questions?

This challenge tests your understanding of how stop, remember, and try change meaning depending on whether they're followed by a gerund or an infinitive. You'll practice distinguishing between past memories and future intentions, quitting an action versus pausing for one, and experimenting versus making an effort.

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What if zombies attacked or you could time travel? Master subjunctive mood and conditional sentences through 10 thrilling scenarios that will make you wish grammar were always this exciting!

This English grammar quiz is designed to check if an English learner is at B1/Intermediate CEFR level.

It covers a range of grammar and vocabulary concepts that are typically associated with Intermediate learners. These concepts include more advanced verb tenses such as present perfect and past continuous, complex sentence structures such as adverbial clauses and modal verbs, and a wide range of vocabulary related to various topics such as hobbies, and opinions. The quiz also tests the learner's ability to understand idiomatic expressions and phrasal verbs.

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.

We use this expression to talk about habits or repeated actions in the past which we don't do in the present.

For instance: "I used to pass all these grammar tests with ease!"

Practice using verbs that take an object + infinitive pattern, such as want, ask, tell, allow, and encourage. Learn when to use to + verb after the object and which verbs require a bare infinitive instead.

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Master fixed collocations like depend on, listen to, and agree with that must be memorized. Avoid common errors like "depend of" or "listen the music" with 10 medium level questions.