Top 11 Grammar Mistakes to Avoid in Content Marketing

I know many writers will be disappointed to hear this, but Grammarly is not grammatically perfect. There are still things that are missed, so it’s important to freshen up on some of the rules every once in a while. 


The content on your site is more important than ever because it is usually the first point of contact for people about your company. Think of it as a first interview. In person, you can explain or even show your products more fluidly. Now that people prefer to do some research on their own, your website needs to be perfect. Any error is an excuse for someone to go and give their money to your competitors.

How to Avoid these Top Grammar Mistakes

Here are my top 11 most cringe-worthy grammar mistakes. Which ones are yours? (take the poll below and see where you stand)

This one is surprising to most people, but it is actually incorrect to say, “I’m feeling nauseous.” The correct way is, “I’m feeling nauseated.” The thing that made you feel nauseated is actually what is nauseous. “The nauseous poison made me feel nauseated.”

Wrong: “I’m so nauseous right now.”

Right: “I’m so nauseated right now.”

Only animate (things that are living) receive “who” as a pronoun. Inanimate objects should be referred to as “that.”

Wrong: “She is the one that I was talking about.”

Right: “She is the one who I was talking about.”

Over is a preposition and can only be used as such. For example, “I walked over the bridge.” 

Wrong: “We spent over $200 on the carnival.”

Right: “We spent more than $200 on the carnival.”

A brand is not a living thing, so it will never take a pronoun–especially not a plural one.

Wrong: McDonald’s gave free happy meals to their customers.

Right: McDonald’s gave free happy meals to its customers.

Many writers incorrectly place these between two dependent clauses. A semicolon is used to separate two independent clauses (compound sentence). Remember, semicolons cannot be used to replace commas or periods. Instead, they’re somewhere in between: stronger than a comma but not quite as divisive as a period.


Wrong: When she went to the mall; she bought a new dress.

Right: John went to the library; Sara went to the gym.

Between can only be used to compare two things. Among is used for items 3 and above.

Wrong: I can’t decide between chicken, tofu or fish to order.

Right: I can’t decide among chicken, tofu or fish to order.

Many writers end up using a hyphen instead of an em dash. There is never a reason for using a hyphen to separate clauses.

Wrong: The house rule is simple – clean up after yourself!

Right: The house rule is simple—clean up after yourself!

Many writers get these mixed up, but they actually do mean different things. Farther is used for physical distance. Further is used for metaphorical or figurative distance.

Wrong: The ball rolled further down the street.

Right: The ball rolled farther down the street.

A compound sentence is made up of two independent clauses. What comes before and after the comma should be able to stand on its own as a complete sentence. If a com

Wrong: I went to dinner with my family and we ordered sushi.

Right: I went to dinner with my family, and we ordered sushi.

This is one mistake that actually changes the meaning of the sentence when used incorrectly. If the sentence doesn’t need the clause that the word in question is connecting, use which. If it does, use that.

Wrong: The school, which has 2,000 students, is brand-new.

Right: The school that has 2,000 students is brand-new.

This is a very common error that many people make and that many readers hate. Then is used for a sequence of events. Than is used for comparisons.

Wrong: I went to dinner than got ice cream.

Right: I went to dinner then got ice cream.

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