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Select the correct construction.
Your muscles need time to _________________________ playing basketball this often.

As we are implying an event in the future (need time to), the special construction required here is get used to. In the affirmative form, we must use get used to, not get use to.

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Be

The verb be is the most irregular and most-used verb in English. It has eight formsbe, am, is, are, being, was, were, been — more than any other English verb. It works as both a main verb (linking a subject to a complement: She is a doctor) and an auxiliary (forming the progressive tenses I am working and the passive voice It was written).

Almost every sentence you'll ever speak or write uses some form of be. Master its irregular forms early — am/is/are/was/were/been — and the rest of English grammar gets dramatically easier.

Modal verb

A modal verb is a special class of auxiliarycan, could, may, might, must, shall, should, will, would — that adds shades of meaning around possibility, ability, permission, obligation, or speculation. I can swim (ability), You should rest (advice), It might rain (possibility), You must leave (obligation).

Modals are grammatically peculiar: no -s in the third person (she can, not she cans), no infinitive, no participle, followed by the bare verb (I can swim, never I can to swim). Mastering them is the move from describing facts to expressing how you feel about them — likelihood, necessity, recommendation.

Auxiliary verb

An auxiliary verb (or "helping verb") is a verb that combines with a main verb to add grammatical meaning — questions, negation, tense, aspect, voice, or modality. The English auxiliaries are forms of be, have, do, plus the modal verbs (can, could, will, would, should, may, might, must).

Auxiliaries are what let you build past tense (have gone), continuous aspect (is going), passive voice (was eaten), and questions (Do you know?). Without them, you can't form most of the structures you need beyond the simple present and past — they're the engine that powers half the tense system.

Habitual aspect

The habitual aspect marks an action as repeated or routine — something done regularly, not just once. English has several ways to express it: the present simple for current habits (I walk to work every day), used to + infinitive for past habits no longer true (I used to smoke), and would + infinitive for repeated past actions in a specific time frame (Every summer, we would go to the lake).

Knowing the difference matters because used to and would aren't interchangeable. Would needs a time anchor; used to doesn't. Get the distinction right and your past narratives stop sounding stiff or vague.

C1 | Advanced

C1 is the advanced level in the CEFR framework, sitting between B2 and C2. At C1 you stop translating in your head and start thinking in English — handling specialised articles outside your field, picking up implicit meaning, and writing structured arguments on complex topics.

Grammatically, C1 means natural use of inversion (Rarely have I seen…), mixed and advanced conditionals, subjunctive forms in formal contexts, and cleft sentences for emphasis. Most university programmes for non-native speakers and many professional certifications set C1 as their entry standard.

Difficulty: Hard

The Hard difficulty tag marks questions and challenges aimed at upper-intermediate to advanced learners — typically B2 and above. Expect interacting rules, edge cases, distractors that look right at first glance, and contexts where the surface meaning and the grammatical answer don't match.

Filter by Hard when you're past the basics and want material that genuinely tests your understanding. These questions catch the gaps your textbook didn't — register-sensitive choices, exception cases, mixed conditionals, the difference between would have been and had been.