To get a higher score on the IELTS or TOEFL writing exam, you must demonstrate grammatical range and accuracy by effectively using complex sentence structures. This involves correctly combining independent and dependent clauses with appropriate conjunctions, showing the examiner you can express sophisticated ideas with clarity and precision.
Mastering this skill is a non-negotiable step towards achieving a top-tier score. Both the IELTS and TOEFL writing rubrics explicitly reward candidates for their ability to use a variety of sentence structures. In this guide, we'll break down exactly what examiners are looking for and how you can deliver it.
What Exactly Do Examiners Mean by a 'Complex Sentence'?
First, let's clear up a common misconception: a complex sentence is not simply a long or complicated sentence. In grammatical terms, a complex sentence contains one independent clause (a complete thought) and at least one dependent (or subordinate) clause. These clauses are linked by a subordinating conjunction (like *because, while, although*) or a relative pronoun (*who, which, that*).
Let's see the difference:
- Simple Sentences: The city's population grew rapidly. This caused housing shortages.
- Complex Sentence: *Because* the city's population grew rapidly, it caused significant housing shortages.
The second example is much more sophisticated. It shows the relationship between the two ideas (cause and effect) within a single, fluent sentence. This is the kind of grammatical control that impresses examiners.
How Can I Use Complex Sentence Structures to Get a Higher Score on the IELTS or TOEFL?
Demonstrating proficiency isn't about stuffing every paragraph with difficult grammar. It’s about using the right structures to make your arguments more cohesive and persuasive. Here’s how you can start incorporating them into your practice.
Master Subordinating Conjunctions
Subordinating conjunctions are the essential glue for complex sentences. They introduce a dependent clause and show its relationship to the main clause.
- Contrast: although, even though, whereas, while
- Example: *Although* technology offers numerous benefits, its potential drawbacks should not be overlooked.
- Cause & Effect: because, since, as
- Example: The project was successful *because* the team collaborated effectively.
- Time: when, after, before, once
- Example: *After* the new policy was implemented, public satisfaction levels increased.
Weave in Relative Clauses
Relative clauses add extra information about a noun. They typically begin with *who, whom, whose, which,* or *that*.
- Simple: The researcher is well-respected. He published a groundbreaking study.
- Complex: The researcher, *who published a groundbreaking study*, is well-respected.
Using relative clauses allows you to combine ideas smoothly, avoiding a series of short, choppy sentences and demonstrating strong grammatical command.
Vary Your Sentence Openings
A common sign of intermediate writing is starting every sentence with the subject (e.g., "The government did this. It also did that. Many people think..."). To score higher, vary your sentence beginnings.
- Start with the dependent clause: *While some argue for stricter regulations,* others believe in a free-market approach.
- Start with a prepositional phrase: *In recent years,* there has been a significant shift towards remote work.
This variety keeps your writing engaging and showcases a wider grammatical range.
What Common Mistakes Should I Avoid When I Use Complex Sentence Structures?
Using advanced grammar incorrectly can hurt your score more than using simple sentences perfectly. Here are the major pitfalls to avoid:
- Run-On Sentences: Don't create extremely long sentences just for the sake of it. A sentence that is grammatically correct but difficult to understand is not effective. Always prioritise clarity.
- Incorrect Punctuation: A common error is the comma splice, where two independent clauses are joined only with a comma. Remember that a dependent clause at the beginning of a sentence is usually followed by a comma, but one at the end often is not.
- Correct: *If public transport is improved,* traffic congestion will decrease.
- Incorrect: Public transport should be improved, it would decrease traffic congestion.
- Forcing Complexity: The goal is sentence variety. Your writing should include a healthy mix of simple, compound, and complex sentences. Using a simple sentence for a direct, powerful point can be highly effective. Don't make every single sentence complex.
Conclusion
Ultimately, learning to use complex sentence structures to get a higher score on the IELTS or TOEFL is about demonstrating control and precision. It’s not about writing the longest sentences possible; it's about choosing the right grammatical structure to express your ideas clearly and logically. By mastering subordinating conjunctions, relative clauses, and sentence variety, you will be well on your way to achieving the grammatical range and accuracy needed for a top score.
Frequently Asked Questions (FAQ)
Q1: What is a complex sentence for IELTS or TOEFL?
A complex sentence for these exams is a sentence that contains one main (independent) clause and at least one subordinate (dependent) clause. These clauses are connected by markers like 'although', 'because', 'while', 'if', or relative pronouns like 'which' and 'who'.
Q2: How can I improve my sentence structure for the TOEFL writing section?
Start by actively practising combining simple ideas into more complex ones. Take two related simple sentences and join them using a subordinating conjunction. Also, focus on varying how you begin your sentences—sometimes with the subject, sometimes with a dependent clause, and sometimes with a transitional phrase.
Q3: Will I get a low score if I only use simple sentences?
Yes, you will likely get a lower score. The official marking criteria for both IELTS (Grammatical Range and Accuracy) and TOEFL (Language Use) specifically assess your ability to use a variety of sentence structures. Relying only on simple sentences signals a limited grammatical ability to the examiner and will cap your potential score.
Q4: What are some good linking words for creating complex sentences?
Excellent linking words (subordinating conjunctions) to start with include 'although', 'whereas', and 'while' for contrast; 'because', 'since', and 'as' for reason; and 'if', 'unless', and 'provided that' for conditions. For adding extra information, use relative pronouns like 'who', 'which', and 'that'.
Q5: Is a compound sentence the same as a complex sentence?
No, they are different. A compound sentence connects two independent clauses (two complete thoughts) using a coordinating conjunction like 'for', 'and', 'nor', 'but', 'or', 'yet', or 'so'. A complex sentence connects an independent clause with a dependent clause, showing a more sophisticated relationship between the ideas.