Verb

A verb is a word that expresses an action, a state, or an occurrence — and it's the engine of every English sentence. Understanding how verbs work is foundational to everything else in English grammar, from forming questions to building complex sentences.

Verb Forms

Most English verbs have five inflected forms:

• Base form (go, write, climb) — used as an infinitive, imperative, present subjunctive, and present indicative in all persons except third-person singular.
• -s form (goes, writes, climbs) — used for the present tense, third-person singular (she writes).
• Past tense (went, wrote, climbed) — also called the preterite.
• Past participle (gone, written, climbed) — identical to the past tense for regular verbs, but often different for irregular verbs.
• -ing form (going, writing, climbing) — serves as the present participle and gerund.

The verb be is a special case with more forms than any other English verb (am, is, are, was, were, been, being). Modal verbs like can, must, and should have fewer forms than typical verbs.

Main Verbs and Auxiliaries

Verbs in English often appear in combinations: one or more auxiliary verbs paired with a main verb.

• The dog was barking very loudly.
• My hat has been cleaned.
• Jane does not really like us.

The first verb in the combination is the finite verb (it carries tense and agrees with the subject). The rest are nonfinite (infinitives or participles). Notice that these verbs don't always sit next to each other — as in does not really like.

Tense, Aspect, and Mood

English expresses tense (time reference), aspect (how an action unfolds over time), and mood (the speaker's attitude toward the action) mostly through verb combinations rather than word endings. That's why you'll encounter labels like "present progressive" or "conditional perfect" — these are specific tense–aspect–mood combinations built with auxiliaries.

Self-check: If you can change the time of a sentence by swapping one word (She runs → She ran), that word is the verb.

Keep Practising

To build your verb skills from the ground up, try these challenges: Basics. "To be" in Present Tense, Basics. Common Uses of Auxiliary Verbs, and Transitive and Intransitive Verbs.

Phrasal Verbs

In English, a phrasal verb is a phrase such as turn down or ran into which combines two or three words from different grammatical categories: a verb and a particle and/or a preposition together form a single semantic unit. This semantic unit cannot be understood based upon the meanings of the individual parts, but must be taken as a whole. In other words, the meaning is non-compositional and thus unpredictable. Phrasal verbs that include a preposition are known as prepositional verbs and phrasal verbs that include a particle are also known as particle verbs. Additional alternative terms for phrasal verb are compound verb, verb-adverb combination, verb-particle construction, two-part word/verb, and three-part word/verb (depending on the number of particles), and multi-word verb.

Examples

There are at least three main types of phrasal verb constructions depending on whether the verb combines with a preposition, a particle, or both. The phrasal verb constructions in the following examples are in bold:

Verb + preposition (prepositional phrasal verbs)

When the element is a preposition, it is the head) of a full prepositional phrase and the phrasal verb is thus a prepositional phrasal verb. These phrasal verbs can also be thought of as transitive and non-separable; the complement follows the phrasal verb.

• Who is looking after the kids? – after is a preposition that introduces the prepositional phrase after the kids.
• They picked on nobody. – on is a preposition that introduces the prepositional phrase on nobody.
• I ran into an old friend. – into is a preposition that introduces the prepositional phrase into an old friend.
• She takes after her mother. – after is a preposition that introduces the prepositional phrase after her mother.
• Sam passes for a linguist. – for is a preposition that introduces the prepositional phrase for a linguist.
• You should stand by your friend. – by is a preposition that introduces the prepositional phrase by your friend.

Verb + particle (particle phrasal verbs)

When the element is a particle, it can not (or no longer) be construed as a preposition, but rather is a particle because it does not take a complement. These verbs can be transitive or intransitive. If they are transitive, they are separable.

• They brought that up twice. – up is a particle, not a preposition.
• You should think it over. – over is a particle, not a preposition.
• Why does he always dress down? – down is a particle, not a preposition.
• You should not give in so quickly. – in is a particle, not a preposition.
• Where do they want to hang out? – out is a particle, not a preposition.
• She handed it in. – in is a particle, not a preposition. *

Verb + particle + preposition (particle-prepositional phrasal verbs)

Finally, many phrasal verbs are combined with both a preposition and a particle.

• Who can put up with that? – up is a particle and with is a preposition.
• She is looking forward to a rest. – forward is a particle and to is a preposition.
• The other tanks were bearing down on my panther. – down is a particle and on is a preposition.
• They were really teeing off on me. – off is a particle and on is a preposition.
• We loaded up on Mountain Dew and Doritos. – up is a particle and on is a preposition
• Susan has been sitting in for me. – in is a particle and for is a preposition.The aspect of these types of verbs that unifies them under the single banner phrasal verb is the fact that their meaning cannot be understood based upon the meaning of their parts taken in isolation: the meaning of pick up is distinct from pick; the meaning of hang out is not obviously related to hang.

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

Vocabulary in English language can be thought of as a toolbox that you use to express yourself and understand others. It's important to continue expanding and refining it. This means learning new words, phrases, and idiomatic expressions and understanding how to use them in different contexts. The more tools you have in your toolbox, the more effectively you can communicate and understand others. Having a broad vocabulary also allows you to understand and engage with more complex texts and ideas, giving you access to new information and opportunities. Additionally, having a strong vocabulary is essential for academic and professional success, as it allows you to express yourself clearly and persuasively in writing and speaking. Like a carpenter who continues to learn new tools and techniques to improve their craft, expanding your vocabulary is an ongoing process that will help you improve your communication skills.

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.