Simple, Compound, Complex Sentences Examples

Day 3 Activity: Simple, Compound and Complex Sentences

IELTS with Mujahid | Beginner level | Works on phone, tablet and laptop

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Why this matters. Sentences come in three main types, and knowing them helps you write and speak with more variety. A simple sentence has one main idea, such as “I study English”. A compound sentence joins two equal ideas, such as “I study English, and my brother plays cricket”. A complex sentence joins a main idea with a supporting idea, such as “Although I was tired, I finished my homework”. In the conjunctions lesson you learned FANBOYS and subordinating conjunctions, and now you see how they build these sentence types. In IELTS Writing, one of the marking areas is grammatical range, which means using a mix of simple, compound and complex sentences. In Speaking, longer and more connected sentences help you sound fluent. Every sentence needs a subject and a verb, which you practised in earlier lessons on nouns, pronouns and verbs. Learn the three patterns below and you will be able to upgrade short, basic sentences into stronger ones immediately.

Self-learning step: Open Google and search “simple compound complex sentences examples”. Read one page for five minutes, then come back and try the activities.

Key ideas. A clause has a subject and a verb. An independent clause can stand alone. A dependent clause starts with a word like because, although, when or if, and it cannot stand alone.
TypeStructureExample
SimpleOne independent clauseI study English every day.
CompoundIndependent clause + FANBOYS + independent clauseI study English, and my brother plays cricket.
ComplexIndependent clause + dependent clauseI study English because I want a high band score.
Simple with more detail
Ali and Sara study and practise daily. (still one clause)
Compound: use a comma
She was tired, but she kept working.
Complex: comma if the dependent clause is first
Although it was late, we kept studying.
Bonus: compound-complex
Although it was late, I studied, and my brother slept.
IELTS traps: do not join two full sentences with only a comma: “I like tea, my brother likes coffee” is a comma splice. Do not leave a dependent clause alone: “Because I was tired.” is a fragment. Do not use two conjunctions for one link: “Although it was late, but we studied” is wrong.

Activity 1: Which type of sentence?

Tap Simple, Compound or Complex.

Activity 2: Join the ideas

Choose the best joining word to make the sentence type shown.

Activity 3: How many clauses?

Count the subject and verb pairs.

Activity 4: Spot the correct sentence

Two sentences, one is correct. These are real learner mistakes.

Activity 5: Joining word detective

Tap the joining word in each sentence. Then press Check to see what type of sentence it makes.

Activity 6: Sentence variety in IELTS

Choose the best sentence for Writing Task 2 and Speaking.

Activity 7: Write it yourself

Use the lines below. Write in your own words, then tick the checklist.

A. Simple. Write 3 simple sentences about your daily life or your hometown.
B. Compound. Join your ideas into 2 compound sentences using for, and, but or so. Remember the comma before the joining word.
C. Complex. Writing Task 2 practice: write 3 complex sentences about technology or education. Use although, because or if.
Self-check

Excellent work. Sentence variety is one of the quickest ways to raise your writing score. Keep practicing at www.goatguruenglish.com

IELTS with Mujahid | www.goatguruenglish.com

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