What Is a Part of Speech?
A part of speech is a grammatical category that shows how a word functions in a sentence: naming something, describing an action, or linking ideas. English has 8 categories: noun, verb, adjective, adverb, pronoun, preposition, conjunction, and interjection. Every word in a CEFR speaking or writing task falls into one of these groups.
The same word can belong to more than one category depending on context. "Run" works as a verb in "I run every morning" and as a noun in "She went for a run." CEFR exams test this flexibility directly, since recognizing a word's role in context is part of grammatical range and accuracy criteria at every level from A1 to C2.
Most learners searching this topic want the full framework of all 8 categories before checking individual words. In Examinizer's own keyword research on this topic, 93.2% of searches are generic requests for the full framework, versus 6.8% asking about one specific word. That's why the breakdown below covers each category with examples rather than starting from a single word.
For the complete breakdown of all 8 categories, with examples and CEFR-specific rules for each, visit the grammar hub. It covers how examiners assess part-of-speech accuracy at each proficiency level.
The 8 Parts of Speech: Comparison Table with Definitions and Examples
The table below lists all 8 categories, with a plain-language definition and one example for each.
| Part of Speech | Function | Example |
|---|---|---|
| Noun | Names a person, place, thing, or idea | The teacher arrived early. |
| Verb | Expresses an action or state | She runs every morning. |
| Adjective | Describes or modifies a noun | A bright light filled the room. |
| Adverb | Modifies a verb, adjective, or another adverb | He spoke quietly during the meeting. |
| Pronoun | Replaces a noun to avoid repetition | She gave the book to him. |
| Preposition | Shows a relationship between a noun and another word | The keys are under the mat. |
| Conjunction | Connects words, phrases, or clauses | I wanted to leave, but I stayed. |
| Interjection | Expresses sudden emotion, often standalone | Wow! That was fast. |
Two categories need extra attention because their rules branch out further than a single row can show. Prepositions govern fixed patterns that rarely translate directly between languages, and a full breakdown sits on the prepositions page. Verbs carry significant internal variation, since a single verb shifts form for tense, aspect, and irregularity. The irregular verbs guide lists the forms that trip up learners most often, including the ones that don't follow standard past-tense patterns.
CEFR Level Breakdown: When Each Part of Speech Is Taught (A1-C2)
CEFR grammar builds in layers from A1 to C2, and each level adds structures that depend on what came before. A word like "since" might work as a simple preposition at A2 and shift to a nuanced conjunction at C1.
A1 and A2 cover the foundation: nouns, pronouns, basic verbs in present and simple past, common prepositions like "in" and "on," and simple adjectives for describing people and objects. B1 and B2 add complexity, introducing adverbs, conjunctions that link longer ideas, comparative and superlative adjective forms, and a deeper range of verb tenses including perfect and continuous aspects. C1 and C2 focus on precision rather than new categories: nuanced conjunctions such as "albeit" and "whereby," interjections used naturally in speech, idiomatic prepositional phrases, and clause linking that carries multiple layers of meaning in a single sentence.
Learners searching for parts of speech are usually trying to place themselves somewhere in this A1-C2 progression, not looking up an isolated term.
For a detailed view of how verb tenses specifically shift across levels, see tense progression by CEFR level. To find out where your own grammar currently sits, the CEFR grammar level check gives a placement based on your answers. It is not a substitute for an accredited exam.
Common Mistakes with Parts of Speech
Five errors account for most of the deductions on CEFR grammar sections, and all five trace back to part-of-speech confusion. "She sings beautiful" swaps an adjective for the adverb "beautifully," a mistake that persists even at B2 level because the incorrect form sounds acceptable in casual speech.
Prepositions in fixed phrases cause similar trouble: "married with" instead of "married to," or "depend of" instead of "depend on." These combinations don't follow logical rules, so learners memorize them individually. A full breakdown of the patterns is available at our prepositions guide.
Pronoun-antecedent agreement slips up test-takers when the antecedent is a collective noun or an indefinite pronoun, as in "everyone brought their book" versus stricter formal agreement rules. Irregular verb forms create a second layer of difficulty, since "he goed" and "she has wrote" both misapply regular patterns to verbs that don't follow them. The high-frequency irregular verbs tested across CEFR levels are listed at our irregular verbs page.
Conjunctions round out the list of frequent errors. Learners often write "because" where "so" belongs, reversing cause and effect: "I was tired because I went to bed early" instead of "I was tired, so I went to bed early." This mix-up shows up across A2 to C1 writing samples, and it affects the logic of the sentence rather than just its wording.
How Learners Search for Parts-of-Speech Help
People come to parts-of-speech questions in two different ways: some want the full 8-category framework explained from scratch, others need one specific word identified fast, mid-sentence, while writing or grading something.
The first type types something like "parts of speech" or "types of parts of speech with examples." In Examinizer's own keyword research on this topic, this generic framework-seeking pattern accounts for 93.2% of searches (1,451 of 1,556 keywords analyzed). They want the full picture: all 8 categories laid out with clear definitions and example sentences, ideally on one page they can scan top to bottom.
The second type has a narrower, more urgent question, accounting for the remaining 6.8% of searches. They are usually mid-sentence in an essay or grading someone else's work, and they type queries like "what part of speech is 'the'" or "is 'quickly' an adverb or adjective." They don't want all 8 categories explained again. They want one word identified, fast, with a short reason attached.
The category breakdown and table above cover the first case. The specific word examples threaded through each section, like "run," "quickly," and "since," cover the second.
Once the definitions make sense, the next useful step is checking whether you can apply them under exam conditions. The English grammar test moves you from identifying parts of speech in isolation to spotting them correctly in full sentences, closer to how CEFR writing and reading tasks actually test grammar.