English grammar can sometimes seem complicated, especially when you are learning English as a second or additional language. There are many rules, exceptions and terms that can make even simple sentences feel confusing.
The good news is that you do not need to learn every grammar rule at once.
A better approach is to understand the basic rules and gradually build from there. This guide explains some of the most important parts of English grammar in simple language, with examples you can use in everyday communication.
What is English grammar?
English grammar is the set of rules that explains how words are put together to form sentences.
For example:
She reads books.
This sentence is easy to understand because the words are arranged correctly.
If we change the order:
Books she reads.
The meaning may still be understood, but it does not sound natural in ordinary English.
Grammar helps us organise words so that our meaning is clear.
The basic parts of an English sentence
Most simple English sentences contain a subject, a verb and sometimes an object.
Subject
The subject is the person, animal or thing doing the action.
- John works in Nairobi.
- She likes coffee.
- The children are playing.
Verb
The verb describes an action or state.
- John works in Nairobi.
- She likes coffee.
- The children are playing.
Object
The object receives the action.
- She reads a book.
- He bought a phone.
- They watched the match.
A simple sentence can therefore follow this pattern:
Subject + Verb + Object
For example:
Mary + bought + a new laptop.
Nouns: Names of people, places and things
A noun is a word used to name a person, place, thing or idea.
Examples include:
- Person: teacher, doctor, farmer
- Place: Kenya, school, market
- Thing: phone, table, car
- Idea: happiness, freedom, education
Nouns can be singular or plural.
Singular:
- book
- student
- car
Plural:
- books
- students
- cars
In many cases, we add -s to make a noun plural, although there are exceptions.
Pronouns: Words that replace nouns
Pronouns help us avoid repeating the same noun.
Instead of saying:
Mary went to the shop because Mary needed milk.
We can say:
Mary went to the shop because she needed milk.
Common pronouns include:
- I
- you
- he
- she
- it
- we
- they
For example:
- I am tired.
- He works here.
- She lives in Mombasa.
- They arrived early.
Verbs: Words that show action or state
Verbs are among the most important words in English.
Examples include:
- eat
- walk
- work
- study
- speak
- write
- sleep
- understand
Some verbs describe a state rather than an obvious physical action.
Examples:
- know
- like
- believe
- understand
- need
For example:
I understand the question.
Adjectives: Words that describe things
An adjective gives us more information about a noun.
Compare:
I bought a car.
with:
I bought a new car.
The word new tells us more about the car.
Other examples include:
- beautiful
- expensive
- small
- interesting
- difficult
- friendly
- important
Examples:
- She has a beautiful voice.
- It was an interesting conversation.
- He bought an expensive phone.
Adverbs: Words that give more information
Adverbs often tell us how, when or where something happens.
Examples:
- quickly
- slowly
- carefully
- yesterday
- tomorrow
- often
- always
- never
For example:
She speaks slowly.
The word slowly tells us how she speaks.
Another example:
He often travels for work.
The word often tells us how frequently he travels.
Understanding English tenses
Tenses tell us when something happens.
The three basic time periods are:
- Present — happening now or regularly
- Past — already happened
- Future — will happen later
Present
I work in Nairobi.
This can describe something that is generally true or part of your regular life.
Past
I worked in Nairobi last year.
The action happened in the past.
Future
I will work in Nairobi next year.
The action is expected to happen in the future.
English has several more specific tenses, but understanding these basic ideas is a good starting point.
The difference between “is”, “are” and “am”
These are forms of the verb to be.
Use am with I:
I am happy.
Use is with singular subjects such as he, she and it:
She is tired.
The car is new.
Use are with you, we and they:
They are ready.
We are late.
You are welcome.
A simple way to remember them is:
I → am
He/She/It → is
You/We/They → are
“A”, “an” and “the”
These small words are called articles, and they are often confusing for English learners.
Use a before a singular countable noun when referring to something generally.
- a car
- a house
- a teacher
Use an before a word beginning with a vowel sound.
- an apple
- an hour
- an interesting book
Use the when talking about something specific or already known.
- I bought a book yesterday.
- The book is very interesting.
The first time we mention something, we might use a or an. When we refer to that specific thing again, the may be appropriate.
Common English grammar mistakes
Even people who speak English regularly can make grammar mistakes. Here are some common ones.
“He don’t” vs “he doesn’t”
Incorrect:
He don’t like football.
Correct:
He doesn’t like football.
“She go” vs “she goes”
Incorrect:
She go to work every day.
Correct:
She goes to work every day.
With he, she and it in the simple present tense, the verb often takes -s or -es.
“I have went” vs “I have gone”
Incorrect:
I have went to the shop.
Correct:
I have gone to the shop.
The correct past participle of go is gone.
“More better” vs “better”
Incorrect:
This option is more better.
Correct:
This option is better.
The word better already expresses the comparison.
How to make your English sentences clearer
Good grammar is not about using complicated words. In many situations, simple sentences are easier to understand.
Instead of writing:
Due to the fact that the meeting was postponed, we were unable to attend it at the previously agreed time.
You could simply write:
Because the meeting was postponed, we could not attend at the agreed time.
The second sentence is shorter and easier to understand.
When writing or speaking English, try to:
- Use clear sentences.
- Avoid unnecessary words.
- Choose familiar vocabulary when possible.
- Check your verb tense.
- Make sure the subject and verb agree.
- Read your sentence aloud before sending or publishing it.
Subject-verb agreement
The subject and verb should generally agree.
For example:
He works.
They work.
Notice the difference:
- He works
- They work
Another example:
- She likes coffee.
- We like coffee.
This is one of the most common grammar rules learners encounter.
Grammar does not have to be difficult
Learning English grammar is a gradual process. You do not have to memorise dozens of rules before you can communicate well.
Start with the basics:
- Learn how sentences are structured.
- Understand nouns, pronouns and verbs.
- Learn common adjectives and adverbs.
- Practise the main tenses.
- Pay attention to common mistakes.
- Read and listen to natural English regularly.
- Use what you learn in your own sentences.
The more you read, listen, write and speak English, the more familiar correct grammar will become.