Effective IELTS Punctuation and Comma Rules

Published: July 8, 2025Category: IELTS Grammar Practice

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Punctuation and Comma Rules

Rule Explanation

Commas are small but powerful punctuation marks that help clarify meaning and improve readability. In IELTS writing and speaking transcripts, correct comma usage can raise the clarity of your ideas and boost coherence. Below are key comma rules:

  1. Introductory Elements

    • Use a comma after introductory words, phrases, or clauses that come before the main clause.
    • Example: "After finishing the report, she submitted it to her supervisor."
    • Common mistake: Omitting the comma changes the sentence flow: "After finishing the report she submitted it..."
  2. Items in a Series

    • Place commas between three or more items or phrases in a list.
    • Example: "The course covers reading, writing, listening, and speaking skills."
    • Common mistake: Missing commas can blur separate items: "reading writing listening and speaking"
  3. Compound Sentences

    • Use a comma before coordinating conjunctions (for, and, nor, but, or, yet, so) when they join two independent clauses.
    • Example: "She planned the outline carefully, and she wrote each section clearly."
    • Common mistake: Writing a run-on: "She planned the outline carefully and she wrote each section clearly."
  4. Non-essential (Parenthetical) Clauses

    • Enclose extra information that is not critical to the sentence meaning with commas.
    • Example: "The lecture, despite being lengthy, was very engaging."
    • Common mistake: Omitting commas makes the clause seem essential and alters the meaning.

Note: Commas can change the meaning of a sentence. Always check whether the phrase is essential or introductory before adding or removing a comma.

Examples

  • Correct: "In my opinion, punctuation marks such as commas and semicolons improve sentence structure."
  • Correct: "They reviewed the data, identified errors, and suggested improvements."
  • Incorrect: "They reviewed the data identified errors and suggested improvements." (Missing commas in a series)

Practice Question

Fill in the blank by choosing the correct option:

When preparing for the IELTS exam___ you should practice timing and accuracy regularly.

A) exam you should practice
B) exam, you should practice
C) exam you, should practice
D) exam; you should practice

Show Answer

Answer: B) exam, you should practice
Explanation: The introductory phrase "When preparing for the IELTS exam" needs a comma before the main clause to separate it from "you should practice." This clarifies the sentence structure and improves readability.

Key Takeaways

  • Use commas after introductory phrases to set off context.
  • Insert commas between items in a list for clarity.
  • Place commas before conjunctions in compound sentences.
  • Add commas around non-essential clauses to signal extra information.
  • Practice grammar correction with Lingo Copilot

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Note: This content was generated with the assistance of AI. While we strive for accuracy, please verify important information from additional sources.