English Grammar: Common Mistakes and How to Avoid Them

Good communication is essential for success in both personal and professional life. In today’s world, where the use of English as a global language has increased significantly, it has become important to improve your English communication skills.

However, one of the biggest hurdles in achieving this goal is grammar. Even native English speakers can make grammatical errors that can hinder their ability to communicate effectively.

In this blog, I will explore common grammar mistakes made in English and provide tips on how to avoid them. By following these tips, you can improve your English communication skills and excel in both personal and professional settings.

Benefits of Good Communication

Effective communication is critical in our daily lives. It enables us to express ourselves clearly, understand others, build relationships, negotiate, and solve problems. Good communication skills can open doors to new opportunities, such as job interviews, promotions, and business deals. Here are some of the benefits of good communication:

Enhanced personal relationships 

Good communication skills can help you build stronger personal relationships by allowing you to express your thoughts and feelings effectively.

Improved professional relationships

In the professional world, communication is crucial for building relationships with clients, colleagues, and superiors. Effective communication can help you establish trust, build respect, and foster teamwork.

Greater job opportunities

Good communication skills are often a requirement for job positions. By improving your communication skills, you can increase your job opportunities and stand out from other candidates.

Better negotiation skills

Negotiation is a critical skill that requires effective communication. With good communication skills, you can negotiate effectively, leading to successful outcomes.

Increased self-confidence

Good communication skills can boost your self-confidence by enabling you to express yourself effectively and assertively.

English Communication Training

Improving your English communication skills requires constant practice and training. Here are some tips for English communication training:

Read regularly

Reading is one of the best ways to improve your English communication skills. It exposes you to new vocabulary and sentence structures, helping you become a better communicator.

Practice speaking English

Regularly practicing speaking English will help you become more comfortable and fluent in the language. You can practice with friends, family, or language exchange partners.

Watch English movies and TV shows

Watching English movies and TV shows can help you improve your listening and comprehension skills.

Take an English course

An English course can provide you with structured learning, feedback, and guidance, helping you improve your English communication skills.

Use English language resources

There are numerous online resources, such as grammar books, dictionaries, and language learning apps, that can help you improve your English communication skills.

Common Grammar Mistakes and How to Avoid Them

Now, let’s explore some common grammar mistakes made in English and how to avoid them.

Misusing apostrophes

Apostrophes are often used incorrectly, especially when indicating possession. To use apostrophes correctly, remember that:

a. To show singular possession, add an apostrophe and an “s” (e.g., “the cat’s tail”).

b. To show plural possession, add an apostrophe after the “s” (e.g., “the cats’ tails”).

c. Do not use an apostrophe to form plurals.

Confusing “its” and “it’s” 

“Its” is a possessive pronoun, while “it’s” is a contraction of “it is” or “it has.” To avoid confusion, remember that:

a. Use “its” to indicate possession (e.g., “the dog chased its tail”).

b. Use “it’s” when you mean “it is” or “it has” (e.g., “it’s raining outside”).

Using ” their” instead of “there” or “they’re”

These homophones can be confusing, but using the wrong one can lead to miscommunication. Here’s how to use them correctly: a. “There” is used to indicate a place or location (e.g., “the book is over there”).

b. “Their” is a possessive pronoun (e.g., “the book is theirs”).

c. “They’re” is a contraction of “they are” (e.g., “they’re going to the movies”).

Misusing “affect” and “effect” 

These two words are often used interchangeably, but they have distinct meanings. “Affect” is a verb that means to influence or impact, while “effect” is a noun that refers to the result of an action or event. To avoid confusion, remember that: a. Use “affect” when referring to the action of influencing or impacting (e.g., “the weather will affect the game”).

b. Use “effect” when referring to the result of an action or event (e.g., “the effect of the weather was felt during the game”).

Misplacing modifiers

Modifiers are words or phrases that provide additional information about a noun or verb. Misplacing a modifier can lead to confusion or ambiguity. To avoid misplacing modifiers, remember to place them as close as possible to the word they modify. For example: a. Ambiguous: “She only eats chocolate cake on weekends.” (Does she eat only chocolate cake, or does she only eat chocolate cake on weekends?)

b. Clear: “She eats chocolate cake only on weekends.”

Misusing commas

Commas are used to separate items in a list, separate clauses, and clarify meaning. However, using commas incorrectly can lead to confusion. Here are some tips for using commas correctly: a. Use commas to separate items in a list (e.g., “I need to buy eggs, bread, and milk”).

b. Use commas to separate independent clauses in a sentence (e.g., “I went to the store, and I bought some milk”).

c. Do not use a comma to separate a subject from its verb (e.g., “She loves to read books,” not “She, loves to read books”).

d. Use commas to clarify meaning (e.g., “Let’s eat, Grandma” vs. “Let’s eat Grandma”).


Improving your English communication skills can have a significant impact on your personal and professional life. However, grammar can be a hurdle in achieving this goal. By understanding and avoiding common grammar mistakes, you can improve your communication skills and express yourself more effectively.

Remember to read regularly, practice speaking, and take advantage of English language resources to enhance your language skills. With these tips and tricks, you can become a more confident and effective communicator.

I hope this blog will encourage you to go beyond what you know and explore new opportunities, new horizons, new experiences. You will find yourself in places where you could have never imagined.

Peter Buijs

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I operate businesses and I am a proud blogger. Together with a fantastic group of GON marketing experts, I oversee all marketing initiatives for American English Skills Development Center. I do the majority of my job at home. While I’m not working, you can find me diving, touring, and playing the guitar while sipping a great Pale Pilsen beer, which is what I think of as the best beer in the Philippines. My greatest dream is to buy a boat, ride a big bike, and visit all of the 7107 islands in the Philippines.

I’ll talk to you soon.

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