Common mistake subject matter (subject)

Common Grammar Mistakes to Avoid

Proper grammar usage is essential for effective communication. However, many people inadvertently make common mistakes that can detract from the clarity and professionalism of their writing. In this article, we will explore some of these common grammar errors and provide tips on how to avoid them.

Mistake 1: Subject Matter (Subject)

One common mistake is the redundant use of the phrase "subject matter." The word "matter" itself includes the concept of being the subject of discussion or consideration. Therefore, using both "subject" and "matter" together is unnecessary and wordy.

Incorrect: The subject matter of the meeting is about the new project proposal.

Correct: The subject of the meeting is the new project proposal.

Linguix grammar checker can help you identify and correct such errors efficiently.

Mistake 2: The Use of "Affect" and "Effect"

The confusion between "affect" and "effect" is a common issue that even advanced English speakers encounter. "Affect" is a verb that means to influence, while "effect" is used as a noun to refer to the result or outcome of something.


  • The loud noise affected her concentration.
  • The loud noise had a negative effect on her concentration.

Mistake 3: Using "Their" as a Singular Pronoun

Another common error is using "their" as a singular pronoun to refer to a gender-neutral subject. While this has become more accepted in informal writing, it is still considered incorrect in formal or academic contexts.

Incorrect: Everyone should do their best.

Correct: Everyone should do his or her best.

Mistake 4: The Misuse of "Your" and "You're"

The confusion between "your" and "you're" is a mistake that can easily be made when writing quickly or in a casual manner. "Your" is a possessive pronoun, while "you're" is a contraction of "you are."


  • I like your dress. (possessive)
  • You're doing a great job. (you are)

By being aware of these common grammar mistakes and using tools such as the Linguix grammar checker, you can improve the accuracy and effectiveness of your writing. Remember, proper grammar not only enhances your communication but also showcases your professionalism and attention to detail.

subject matter (subject) mistake examples

  • Incorrect:
    What is the subject matter we will discuss today?

    What is the subject we will discuss today?

  • Correct:
    Does the subject matter?
  • Correct:
    Doesn't this subject matter to you?
  • Correct:
    Do any comments on this subject matter to you?
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