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Writing: 7 Errors Your Grammar Checker Is Missing

Writing: 7 Errors Your Grammar Checker is Missing

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ProWritingAid's Hayley Milliman helps us spot what passes the average grammar checker by

Grammar checking apps, like spellcheckers, can be useful writing tools to help indie authors make their self-published books the best they can be, but if you rely only on those for help, you'll miss enough critical errors to upset your readers. To help you self-edit more effectively, Hayley Milliman of ALLi Partner Member ProWriting Aid provides this handy list of errors that will sneak past a grammar checker- and points out the important difference between a grammar checker and an editing tool that works at a macro level.


Grammar checkers, such as the one built into your word processor, are great. They can catch mistakes like misspelled words or misplaced commas. As a writer, I run a grammar check every time I submit a piece of work or send an email.

Nothing makes you look more amateur than silly, easily fixed mistakes.

But those basic grammar checkers are just scratching the surface. It’s possible, common even, for writing to be grammatically perfect and still contain many writing issues. It might be awkwardly constructed, or repetitive, or inconsistent.

pwa_logo_400x400Likewise, while a grammar check will catch outright spelling errors in your work, it only assesses your writing at a micro level and won’t be great at catching things that are wrong in the wider context.

As a writer, it’s important to get an assessment of your work on a macro level so you can catch issues like readability and get an understanding of the primary actions you need to take to improve your work.

An editing tool can help you identify the key places you can make changes to better your writing.

7 Classic Errors to Watch For

Here are seven errors your grammar checker won’t catch, but an editing tool will.

#1: Clichés

Most clichés aren’t grammatically incorrect, so your grammar checker won’t pick up on them. However, using clichés in your work can make your writing feel trite and unprofessional.

Nothing turns a reader off faster than a proliferation of clichés.

An editing tool will highlight any clichés in your work so that you can reimagine them into a less hackneyed phrase.

#2: Homophones

There are many words in the English language that sound alike but have different spellings. These words are called “homophones” and they can trick even the best grammar checker.

The sentence “He lost his patience” means something entirely different to “He lost his patients,” but both are grammatically accurate.

Your grammar checker won’t be able to identify and fix these pesky errors, but an editing tool knows the difference.

 #3: Redundancies

Every word in your writing should be there for a reason. Redundancies occur when you’re adding quantity to your text, but not quality. Perhaps your character is going through clues with “careful scrutiny” – that’s a redundant phrase, because it’s impossible to scrutinize anything uncarefully. You could cut the word and the meaning of the sentence would not change. Or maybe your villain plans to “entirely eliminate” the inhabitants of a Metropolis. If he planned to “eliminate” them instead, the meaning of the sentence remains the same.

As long as the sentences themselves are grammatically correct, your grammar checker won’t pick up on this cardinal sin of writing.

 #4: Readability Score

Your grammar checker isn’t concerned with how difficult to read your writing is, but you should be. Readability scores reflect how easy it is for someone to read and understand your work.

While your target readability score will change depending on the type of writing you’re doing, you’ll want to conform to basic readability score guidelines to make sure your work isn’t alienating your audience. For fiction writing, you’ll want to be near grade seven in order for your work to most resonate.

You can’t calculate readability on your own (and neither can your grammar checker), so you’ll want to use an editing tool to get this important metric.

#5: Repeated Word and Phrases

 Your grammar checker is designed to look for mistakes in spelling and punctuation. It’s not designed to offer commentary on your prose.

One of the most common errors in writing is repeating a particular word or phrase.

If you’ve ever edited your own work, you likely know what I’m talking about: every sky is “cobalt blue,” every person “scampered” from one place to another. Since these errors aren’t technically grammatically incorrect, your grammar checker will not highlight them. Using an editing tool can spice up your writing by identifying these repeats and helping you change them.

#6: Sentence Length

Good writers vary the writing of their sentences to make their work more interesting to read for their readers.

Sentence length variety adds a musical quality to your writing.

Grammar checkers couldn’t care less about the length of your sentences. While your grammar checker may offer a word count feature, it doesn’t have the capability to analyze or report on your sentence length.

Use an editing tool to get an analysis of your sentence variety and to see a visual representation of your work.

#7: Vague Words

As a writer, you should always aim to be as clear and concise as possible.

Vague and abstract words get in the way of this goal. Vague words lack specific information. For instance, if I say that I will be “slightly late,” it’s open to interpretation whether “slightly” means five minutes or twenty. An editing tool will highlight any instances of vague language so that you can replace them with more specific words.

A Better Solution

As you can see, while grammar checkers are certainly useful, there are many serious writing errors that they can miss.

Before you send you work off to your editor or client, consider using a tool like ProWritingAid. A grammar checker, editor, and writing coach all rolled into one, ProWritingAid offers 25 comprehensive writing reports that check your work for everything from, yes, grammar and spelling to vague words, overused phrases, homonyms, sentence length, and more.

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OVER TO YOU What's the best tip you've ever received about how to improve your writing? We'd love to know!

#Writers - look out for these 7 top errors that grammar checkers miss - and how to make sure you catch them with a writing aid such as @ProWritingAid #writing Click To Tweet

From the ALLi Author Advice Center Archive

Author: Hayley Milliman

Hayley Milliman is a former teacher turned writer who works for ProWritingAid as a marketing and customer support associate. Hayley loves writing content that's engaging and informative. Bonus points if it's about Star Wars.


This Post Has 7 Comments
  1. Good list! Just a teensy comment. “Quorum” doesn’t actually mean “four”… Maybe it once did, but for now, my dictionary says, it is “The minimum number of officers and members of a committee or organization, usually a majority, who must be present for valid transaction of business.”

  2. Having authored 29 western frontier eBooks since 2011, I have paid a very high price for not understanding the necessity to READ my books out loud to myself, and use a beta-reader before I put them on Amazon. Once a bad comment is posted, it will be there forever.

    No one ever say the below blooper, grammar error in one of my books and I hope people will learn from it.

    “When David and Pamela opened the picnic basket, they smelled the aroma of fried children.”

    Spell check showed me children was spelled correctly.

    Since I don’t write cannibal books, I quickly changed the word to chicken.

    Reading your finished book several times, especially out loud is an absolute must, before you release your book and put it online.

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