How to write a topic sentence


The topic sentence, which is generally the opening sentence of a paragraph, presents the paragraph’s main idea and establishes the tone.

In research papers, where the topic changes between paragraphs, a topic sentence is extremely crucial. Knowing how to construct a topic sentence is therefore essential for any student or writer.

Purpose of a topic sentence

You can also utilize your topic sentences to easily transition between paragraphs and illustrate the links between your ideas to create a well-structured argument.

Topic sentence vs. thesis statement

Both thesis statements and topic sentences help readers comprehend your research paper’s structure and main arguments. However, they are different in a few respects.

Steps on writing a topic sentence

Topic sentences are developed throughout the writing process. Follow these steps to ensure that each topic sentence and paragraph supports your thesis statement.

Step 1 – Create a thesis statement

Make sure you have a solid thesis statement before you start writing your topic sentences. The thesis statement summarizes the paper’s goal and argument.

Step 2 – Create an outline and start writing topic sentences

Next, sketch out the outline of your paper, including what you’ll say in each paragraph and what evidence you’ll use.

Step 3 – Enrich your arguments with evidence

The rest of the paragraph should follow the topic sentence and build on it with facts, examples, or reasoning.

Step 4 – Polish your topic sentences

The majority of topic sentences begin as basic assertions. However, you should edit them as you write to ensure that they correspond to the content of each paragraph.

Types and examples of topic sentences

It’s helpful to understand the many forms of a topic sentence before learning how to write one. We’ll go through the different categories and give some examples of topic sentences.

Simple statement

The most basic form of a topic sentence is this one, in which the author makes a broad assertion upon which the rest of the paragraph elaborates.

Question form (Interrogative)

As long as you don’t steer away from the subject, starting a paragraph with a question is a wonderful approach to get the reader engaged and involved.

Complex form

You might want to utilize a complex topic sentence if you have a complicated topic with numerous concepts. Even though they are still considered “statements,” they include more than one primary point.

Transitional form

While all topic sentences must deal with transitions to some extent, they can also be simply transitional in some circumstances. These are most effective when the topic shifts dramatically, as they bring attention to the transition (also see transition words and phrases).

Introduction of an argumentative essay

Here are a few specific pointers for topic sentences.

Pique the reader’s attention with a hook

A “hook,” or anything that makes people want to read more, is frequently included in good topic sentences. While some are more frequent than others, there are a number of techniques to entice your readers:

Despite the massive turnout, only 1% of the teams were able to finish the first task.

What eventually persuaded the senator to change his mind?

Living with a dog has its challenges, but they aren’t quite as numerous as living without one.

Find a balance between general and specific

Learning how much to include and how much to leave for the rest of the paragraph is one of the most difficult aspects of creating topic sentences. You should:

Be clear!

Clarity is the most crucial aspect of topic sentences. Even if you pique the reader’s interest and make them want to read more, it won’t matter if they don’t understand what they’re reading. Make use of common academic words, active and passive voice, and verb tenses to be more clear.

Reminders and helpful hints

If you follow these steps and tips, writing excellent topic sentences won’t be too hard. Feel free to analyze our essay samples before writing your paper.

Frequently Asked Questions

A topic sentence presents the paragraph’s main idea and establishes the tone. In this opening sentence, you should briefly explain the subjects of the paragraph.

First, you need to come up with a thesis statement. After that, you need to create an outline. These two will help you to create a topic sentence that presents an evidence.

You can start a topic sentence with a simple statement, a question, a transition sentence to create a flow, or you can present a couple of evidence to start with. 

In a paragraph that will talk about cybersecurity, an example of topic sentence would be: While the Internet has provided many new opportunities for organizations, companies must now consider updating their cybersecurity systems more than ever before.


Thank you for reading. If you need further information, feel free to have a look at our essay samples or contact us at live chat.

Ibrahim Akturk
Ibrahim Akturk
Content editor at Tamara Research. Translation major, huge coffee and baking nerd. Addicted to good music and great articles.

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