Sentence Types and Structure · 5 min read
Simple, compound and complex sentences
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How Far, My People!
Today, we are going to learn about something super important for your English exams: Sentence Types and Structure. Don't worry, it's not hard at all, and it will help you write better and score higher. Let's make this easy!
What is a Sentence?
First, what exactly is a sentence? A sentence is a group of words that makes complete sense. It usually has a subject (who or what is doing the action) and a verb (the action).
For example:
Aisha is reading.
The danfo stopped.
Chidi ate pounded yam.
These are all complete thoughts, abi?
Independent and Dependent Clauses
Before we jump into sentence types, let's quickly understand two important friends: Independent Clauses and Dependent Clauses.
An Independent Clause is a group of words that has a subject and a verb and can stand alone as a complete sentence. Think of it as a complete thought that doesn't need anyone's help to make sense.
Examples:
Tunde went to the market.
The rain fell heavily.
We bought new textbooks.
A Dependent Clause (also called a Subordinate Clause) is a group of words that has a subject and a verb but cannot stand alone as a complete sentence. It depends on an independent clause to make full sense. It often starts with words like 'because', 'although', 'when', 'if', 'while', 'who', 'which'.
Examples:
because she was tired (incomplete thought)
when he arrived in Lagos (incomplete thought)
that we saw yesterday (incomplete thought)
Can you see how these need more information to make sense? Excellent!
Simple Sentences

Let's start with the easiest: the Simple Sentence. A simple sentence is a sentence that contains only one independent clause. It has one subject and one verb, and it expresses a single complete thought. No extra clauses attached!
Examples:
My brother plays football.
The children are happy.
Amina cooked jollof rice.
The car broke down on the expressway.
Compound Sentences
Next up is the Compound Sentence. A compound sentence is a sentence that contains two or more independent clauses joined together. These clauses are usually connected by a coordinating conjunction (FANBOYS: For, And, Nor, But, Or, Yet, So) or sometimes by a semicolon (;). Each clause can stand alone.
Examples:
Chidi studied hard, and he passed his exams.
Aisha likes fufu, but she prefers garri.
The students waited, for their teacher was late.
I visited Kano; it was a beautiful city.
Complex Sentences
Finally, we have the Complex Sentence. A complex sentence is a sentence that contains one independent clause and at least one dependent clause. The dependent clause adds more information to the main independent clause. It's like having a main idea and then adding a supporting idea that cannot stand alone.
The dependent clause often starts with a subordinating conjunction (e.g., 'because', 'although', 'when', 'if', 'while') or a relative pronoun (e.g., 'who', 'which', 'that').
Examples:
Because the traffic was bad, I arrived late.
Tunde will eat the yam after he finishes his homework.
The girl who won the scholarship is very brilliant.
Although it was raining, they still played outside.
Practice Makes Perfect!
Understanding these sentence types will make your writing clearer and more interesting. Keep practicing, and you'll become a master writer!
Any questions? Ask your teachers! You've got this!
Key points
- •A simple sentence has one independent clause.
- •A compound sentence has two or more independent clauses joined by a conjunction or semicolon.
- •A complex sentence has one independent clause and at least one dependent clause.
- •Independent clauses can stand alone; dependent clauses cannot.
