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Help an exhausted college student finish their literature review at 2 AM. Select ALL the phrases that naturally complete the academic statement below.
"In the scientific community, it is _____ that climate change is accelerated by human activity."

The correct answers are widely accepted, widely believed, and widely recognized.

Widely means "by a lot of people" or "in a lot of places," making it perfect for academic consensus (accepted, believed, recognized).

"Convinced" applies to people having a firm belief, but we don't say "it is widely convinced" (we say "many scientists are firmly convinced"). "Undeniable" is an absolute adjective that doesn't pair with "widely"; we would say it is absolutely undeniable.

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Adverb

An adverb is a word that modifies a verb, adjective, determiner, clause, preposition, or sentence. Adverbs typically express manner, place, time, frequency, degree, level of certainty, etc., answering questions such as how?, in what way?, when?, where?, and to what extent?. This function is called the adverbial function, and may be realized by single words (adverbs) or by multi-word expressions (adverbial phrases and adverbial clauses).

Adverbs are traditionally regarded as one of the parts of speech. However, modern linguists note that the term "adverb" has come to be used as a kind of "catch-all" category, used to classify words with various different types of syntactic behavior, not necessarily having much in common except that they do not fit into any of the other available categories (noun, adjective, preposition, etc.)

Adjective

An adjective is a word that describes or modifies a noun or pronoun, giving more information about its qualities, state, or identity. Adjectives are one of the core parts of speech in English, and you use them constantly — to describe people, objects, feelings, and ideas.

What adjectives do

Adjectives typically answer questions like What kind?, Which one?, or How many? They can appear in two main positions:

  • Before a noun (called attributive position): a tall building, fresh coffee, three students
  • After a linking verb (called predicative position): The soup is hot, She seems tired

Some adjectives work in only one position. For example, main is almost always attributive (the main reason), while asleep is almost always predicative (The baby is asleep).

Examples

  • ✅ She wore a red dress. (red modifies dress)
  • ✅ The exam was difficult. (difficult follows the linking verb was)
  • ❌ She wore a redly dress. (Adverbs like redly don't modify nouns.)
  • ✅ He gave me useful advice. (useful modifies the uncountable noun advice)

Adjective order

When you stack multiple adjectives before a noun, English follows a conventional order: opinion → size → age → shape → colour → origin → material → purpose. For example, a lovely small old round brown French wooden serving table — though in real life you'd rarely pile up that many.

Self-check: If your sentence sounds awkward with two adjectives before a noun, try swapping their order. The version that "sounds right" usually follows the standard sequence.

Adjectives vs. determiners

Words like the, this, my, and some were historically grouped with adjectives, but modern grammar classifies them as determiners. Unlike true adjectives, determiners don't have comparative forms (bigger works, but *more the doesn't) and occupy a fixed slot before any adjectives.

Comparatives and superlatives

Most adjectives have comparative and superlative forms used to compare things:

  • tall → taller → tallest
  • expensive → more expensive → most expensive

To practice these, try Comparatives and Superlatives. You can also build a foundation with Basics. Adjectives and Adverbs. and Basics. Word Order..

Participle

Participles are verb forms that do double duty — they help build tenses and voices, but they also work as adjectives and adverbs. Understanding both types of participles is essential for forming correct verb tenses, using the passive voice, and writing more sophisticated sentences.

The Two Participles

English has two participles:

  1. Present participle — formed by adding -ing to the base verb: doing, running, sleeping. It's identical in form to the gerund, but serves a different function (more on that below).
  2. Past participle — for regular verbs, it's the -ed form (walked, boiled). For irregular verbs, it varies widely: done, written, sung, gone.

How the Present Participle Is Used

  • Progressive tenses: She is reading a book.
  • As an adjective: The woman sitting by the window is my boss.
  • As an adverb: Looking up from his phone, he noticed the bus had arrived.
  • In absolute constructions (with its own subject): The weather being terrible, we cancelled the trip.

Present participles used as adjectives carry an active meaning — an exciting movie is one that excites you.

How the Past Participle Is Used

  • Perfect tenses: They have finished the project.
  • Passive voice: The email was sent this morning.
  • As an adjective: The broken window needs replacing.
  • Adverbially: Exhausted from the hike, we fell asleep immediately.

Past participles used as adjectives usually carry a passive meaning — the attached file is one that has been attached. However, past participles of intransitive verbs can have active meaning: fallen leaves (leaves that have fallen).

Participle vs. Gerund

Both the present participle and the gerund end in -ing, but they do different jobs. The participle acts as an adjective or adverb; the gerund acts as a noun.

  • Swimming in the lake, she felt completely free. (participle — describes she)
  • Swimming is her favourite hobby. (gerund — subject of the sentence)

The famous example Flying planes can be dangerous is ambiguous: flying could be a gerund ("the activity of flying planes") or a participle ("planes that fly").

Self-check: If you can replace the -ing word with a noun like "it" or "the activity," it's a gerund. If it describes a noun or tells you more about an action, it's a participle.

Watch Out: Past Tense vs. Past Participle

For regular verbs, the past tense and past participle look the same (walked, played). For many irregular verbs, they differ:

  • ✅ I went home early. (past tense)
  • ✅ I have gone home early. (past participle)
  • ❌ I should have went home early.

If you're unsure, check whether the verb follows a helping word like have, has, or had — if it does, you need the past participle form.

Ready to practise? Try Gerund vs. Participle: Understanding -ing Word Functions, Participle Clauses: Shortening Sentences with -ing and Having + Past Participle, or Participle vs Gerund.

Active and Passive Voice

The active voice (where the verb's subject is understood to denote the doer, or agent), of the denoted action) is the unmarked voice in English.

To form the passive voice (where the subject denotes the undergoer, or patient), of the action), a periphrastic construction is used.

In the canonical form of the passive, a form of the auxiliary verb be (or sometimes get) is used, together with the past participle of the lexical verb. Passive voice can be expressed in combination together with tenses, aspects and moods, by means of appropriate marking of the auxiliary (which for this purpose is not a stative verb, i.e. it has progressive forms available).

For example:

  • This room is tidied regularly. (simple present passive)
  • It had already been accepted. (past perfect passive)
  • Dinner is being cooked right now. (present progressive passive)

The passive forms of certain of the combinations involving the progressive aspect are quite rare; these include the present perfect progressive (it has been being written), past perfect progressive (it had been being written), future progressive (it will be being written), future perfect progressive (it will have been being written), conditional progressive (it would be being written) and conditional perfect progressive (it would have been being written). Because of the awkwardness of these constructions, they may be paraphrased, for example using the expression in the process of (it has been in the process of being written, it will be in the process of being written, and similar).

The uses of these various passive forms are analogous to those of the corresponding tense–aspect–mood combinations in the active voice.

Collocations

Collocations are combinations of words that are frequently used together in a particular order, forming a natural-sounding expression. These word pairs or groups often sound more natural to native speakers than other possible combinations of the same words. Understanding collocations is important for language learners because they help you sound more fluent and natural when speaking or writing.

Vocabulary for Upper Intermediate/B2 English Level

Vocabulary for Upper Intermediate/B2 English level refers to the set of words and phrases that learners at this level are expected to know and use in the language. These learners have a solid foundation of vocabulary and grammar and are able to communicate effectively in most situations. At this level, learners are expected to have a good command of a wide range of vocabulary and grammar structures, and to be able to use them to express themselves in a clear and detailed way. They are also expected to understand and use more complex vocabulary and idiomatic expressions, such as phrasal verbs and collocations, to communicate nuanced ideas and express themselves in a more sophisticated way. Additionally, learners at this level are expected to have a good understanding of vocabulary related to a variety of topics such as work, school, leisure, and current events. They are also expected to be able to understand and use vocabulary from different specialized fields, such as business, science, and technology. B2 level learners are expected to have a very good command of the language, and this level is considered as the level of a proficient user of the language.

B2 | Upper Intermediate

B2, or Upper Intermediate, is the fourth level on the CEFR scale. It marks the point where you move from "getting by" to genuinely comfortable communication — handling complex topics, expressing nuanced opinions, and understanding most of what you read or hear in real-world contexts.

What a B2 user can do

At this level, you're expected to:

  • Understand complex texts on both concrete and abstract topics, including technical discussions in your own field.
  • Follow extended speech and lectures, even when the structure isn't entirely clear, as long as the topic is reasonably familiar.
  • Interact fluently and spontaneously enough that conversations with native speakers flow naturally — without strain on either side.
  • Produce clear, detailed text on a wide range of subjects, using connectors and cohesive devices to build well-structured arguments.
  • Explain and defend a viewpoint on a topical issue, weighing the advantages and disadvantages of different options.
  • Recognize implicit meaning — reading between the lines in demanding, longer texts.

What B2 grammar looks like in practice

B2 is where grammar stops being about isolated rules and starts being about flexibility and precision. You're expected to control structures like:

  • Advanced conditionals and mixed conditionals — moving beyond simple if-clauses to express hypothetical and counterfactual meaning.
  • Passive voice in varied tenses and contexts, not just present and past simple.
  • Reported speech with correct sequence of tenses, including backshifting and reporting verbs.
  • Participle clauses and the distinction between participles and gerunds.
  • Comparative and superlative structures beyond basic -er/-est, including double comparatives and qualifying expressions.

Errors still happen at B2, but they rarely cause misunderstanding. The goal is controlled, flexible use of language across social, academic, and professional settings.

How B2 fits in the CEFR progression

B2 builds directly on the foundations of B1 (Intermediate) and prepares you for C1 (Advanced). Many university entrance exams, professional certifications, and immigration requirements target B2 as the minimum standard.

Self-check: If you can read a newspaper editorial, follow most of a TED talk without subtitles, and write a clear essay arguing a position — you're likely operating at B2.

Ready to test yourself? Try Is your English level B2/Upper Intermediate? or practise specific B2 grammar with challenges like Basics. Advanced Conditionals And "wish", Basics. Passive Voice, and Sequence of Tenses in Indirect Speech.

Difficulty: Medium

Medium difficulty. Difficulty levels represent author's opinion about how hard a question or challenge is.