Parts of Speech
Every English sentence is built from eight basic word categories. Getting to know them is one of the most useful things you can do for your grammar, reading, writing and speaking, all at once.
Where grammar begins
Parts of Speech are the building blocks behind every rule in this library.
Every word in English belongs to at least one Part of Speech, a category that describes the job that word does in a sentence. There are eight of these categories in traditional English grammar: nouns, pronouns, verbs, adjectives, adverbs, prepositions, conjunctions and interjections.
You do not need to memorise long definitions to get real value from this idea. Once you can recognise a noun, a verb or an adjective on sight, rules that once felt abstract, like subject-verb agreement or word order, start to make a lot more sense. That’s what this page is for: a friendly map of the territory, before the individual lessons go deeper into each one.
Nothing here needs to be perfect on a first read. Understanding grows the more these categories are noticed in ordinary sentences, including the ones you are reading right now.
Before you begin
Parts of Speech sits at the start of the Grammar library.
This page is a starting point for the Grammar section as a whole. Once the eight categories feel familiar, every other Grammar topic builds on them in some way.
Why this matters
Recognising word categories makes every other grammar rule easier to learn.
Understanding Parts of Speech pays off in a few concrete ways.
01
Grammar rules make more sense
Most grammar rules are really instructions about specific word categories, such as “verbs must agree with their subject.”
02
Reading becomes clearer
Spotting the verb and the subject of a long sentence makes its meaning easier to follow.
03
Writing gets more precise
Knowing the difference between an adjective and an adverb helps you choose the right word in the right place.
04
Speaking gains confidence
Word order and sentence structure become more predictable once each word’s role is clear.
Good to know
You already use every Part of Speech correctly, most of the time.
Fluent speakers use all eight categories instinctively, long before they can name them. This page is simply putting labels on patterns you likely already sense.
The eight parts of speech
Every word in English fits into one of these eight categories.
A brief introduction to each. Every one of them has its own lesson for a deeper look.
Nouns — naming words
A noun names a person, place, thing or idea.
The teacher wrote on the board.
Pronouns — standing in for nouns
A pronoun replaces a noun that has already been mentioned or is already understood.
She wrote on it.
Verbs — action and being
A verb expresses an action, or a state of being.
She wrote on the board. She is a teacher.
Adjectives — describing nouns
An adjective describes or gives more detail about a noun.
The new teacher wrote on the board.
Adverbs — describing verbs, and more
An adverb describes a verb, an adjective or another adverb, often answering how, when or where.
She wrote neatly on the board.
Prepositions — showing relationships
A preposition shows the relationship between a noun or pronoun and another word in the sentence, often involving place or time.
She wrote on the board before class.
Conjunctions — connecting words
A conjunction joins words, phrases or clauses together.
She wrote on the board, and the class watched.
Interjections — short bursts of feeling
An interjection expresses a short, often sudden reaction or emotion, and generally stands apart from the rest of the sentence.
Wow! That’s a lot of homework.
Seeing them work together
One sentence, all eight categories.
Here’s how a single sentence draws on every Part of Speech at once.
Wow! The energetic puppy happily chased the red ball across the yard, but it missed.
Wow
Interjection
A short burst of reaction, standing apart from the sentence.
energetic / red
Adjectives
Describing the puppy and the ball.
puppy / ball / yard
Nouns
Naming the animal, the object and the place.
happily
Adverb
Describing how the chasing happened.
chased / missed
Verbs
The two actions in the sentence.
across
Preposition
Showing the relationship between the chasing and the yard.
but
Conjunction
Connecting the two parts of the sentence.
it
Pronoun
Standing in for “the puppy,” already mentioned.
Good to know
Even short sentences usually contain several Parts of Speech.
Breaking a sentence apart this way gets faster with practice, and it is a habit worth building slowly, one sentence at a time.
One word, more than one job
The same word can belong to different Parts of Speech, depending on context.
Context, not the word itself, decides the category.
Run
Verb: I run every morning.
Noun: I went for a run.
Fast
Adjective: That’s a fast car.
Adverb: She runs fast.
Well
Adverb: She sings well.
Interjection: Well, that’s surprising.
Noun: They drew water from the well.
The word itself does not change; only the role it plays in a particular sentence tells you which Part of Speech applies.
Give it a try
Can you identify the Part of Speech?
A quick, low-pressure check-in before moving on. There’s no need to get every one right on the first attempt.
In “The energetic puppy chased the ball,” what Part of Speech is “energetic”?
✅ Exactly! “Energetic” describes the noun “puppy.”
❎ Not quite. Ask what “energetic” is describing.
Adjectives describe nouns.
In “She wrote neatly on the board,” what Part of Speech is “neatly”?
✅ Exactly! “Neatly” describes how she wrote, which makes it an adverb.
❎ Not quite. Ask what question “neatly” is answering about the verb “wrote.”
“I went for a run” versus “I run every morning.” Is “run” the same Part of Speech in both sentences?
✅ Exactly! The same word can shift Part of Speech depending on its role in the sentence.
❎ Not quite. Check whether “run” is naming a thing, or describing an action, in each sentence.
Quick review
Eight categories, working together in every sentence you write or speak.
Nouns name; pronouns stand in for nouns.
Verbs express action or being.
Adjectives describe nouns; adverbs describe verbs, adjectives or other adverbs.
Prepositions show relationships; conjunctions connect.
Interjections express a short reaction, standing apart from the rest of the sentence.
The same word can belong to different Parts of Speech, depending on how it’s used.
Keep going
You now have a map. The rest of the Grammar library fills in the detail.
Every rule explored elsewhere in this library, from verb tenses to conditional sentences to formal writing, is really just these eight categories, arranged in different ways for different purposes. Explore the individual Grammar sections whenever you’re ready to look closer at any one of them.