20 Common Grammar Mistakes That (Almost) Everyone Makes


I’ve edited a monthly magazine for more than six years, and it’s a job that’s come with more frustration than reward. If there’s one thing I am grateful for — and it sure isn’t the pay — it’s that my work has allowed endless time to hone my craft to Louis Skolnick levels of grammar geekery.

As someone who slings red ink for a living, let me tell you: grammar is an ultra-micro component in the larger picture; it lies somewhere in the final steps of the editing trail; and as such it’s an overrated quasi-irrelevancy in the creative process, perpetuated into importance primarily by bitter nerds who accumulate tweed jackets and crippling inferiority complexes. But experience has also taught me that readers, for better or worse, will approach your work with a jaundiced eye and an itch to judge. While your grammar shouldn’t be a reflection of your creative powers or writing abilities, let’s face it — it usually is.

Below are 20 common grammar mistakes I see routinely, not only in editorial queries and submissions, but in print: in HR manuals, blogs, magazines, newspapers, trade journals, and even best selling novels. If it makes you feel any better, I’ve made each of these mistakes a hundred times, and I know some of the best authors in history have lived to see these very toadstools appear in print. Let's hope you can learn from some of their more famous mistakes.

Who and Whom

This one opens a big can of worms. “Who” is a subjective — or nominative — pronoun, along with "he," "she," "it," "we," and "they." It’s used when the pronoun acts as the subject of a clause. “Whom” is an objective pronoun, along with "him," "her," "it", "us," and "them." It’s used when the pronoun acts as the object of a clause. Using “who” or “whom” depends on whether you’re referring to the subject or object of a sentence. When in doubt, substitute “who” with the subjective pronouns “he” or “she,” e.g., Who loves you? cf., He loves me. Similarly, you can also substitute “whom” with the objective pronouns “him” or “her.” e.g., I consulted an attorney whom I met in New York. cf., I consulted him.

Which and That

This is one of the most common mistakes out there, and understandably so. “That” is a restrictive pronoun. It’s vital to the noun to which it’s referring.  e.g., I don’t trust fruits and vegetables that aren’t organic. Here, I’m referring to all non-organic fruits or vegetables. In other words, I only trust fruits and vegetables that are organic. “Which” introduces a relative clause. It allows qualifiers that may not be essential. e.g., I recommend you eat only organic fruits and vegetables, which are available in area grocery stores. In this case, you don’t have to go to a specific grocery store to obtain organic fruits and vegetables. “Which” qualifies, “that” restricts. “Which” is more ambiguous however, and by virtue of its meaning is flexible enough to be used in many restrictive clauses. e.g., The house, which is burning, is mine. e.g., The house that is burning is mine.

Lay and Lie

This is the crown jewel of all grammatical errors. “Lay” is a transitive verb. It requires a direct subject and one or more objects. Its present tense is “lay” (e.g., I lay the pencil on the table) and its past tense is “laid” (e.g., Yesterday I laid the pencil on the table). “Lie” is an intransitive verb. It needs no object. Its present tense is “lie” (e.g., The Andes mountains lie between Chile and Argentina) and its past tense is “lay” (e.g., The man lay waiting for an ambulance). The most common mistake occurs when the writer uses the past tense of the transitive “lay” (e.g., I laid on the bed) when he/she actually means the intransitive past tense of “lie" (e.g., I lay on the bed).


Contrary to common misuse, “moot” doesn’t imply something is superfluous. It means a subject is disputable or open to discussion. e.g., The idea that commercial zoning should be allowed in the residential neighborhood was a moot point for the council.

Continual and Continuous

They’re similar, but there’s a difference. “Continual” means something that's always occurring, with obvious lapses in time. “Continuous” means something continues without any stops or gaps in between. e.g., The continual music next door made it the worst night of studying ever. e.g., Her continuous talking prevented him from concentrating.

Envy and Jealousy

The word “envy” implies a longing for someone else’s good fortunes. “Jealousy” is far more nefarious. It’s a fear of rivalry, often present in sexual situations. “Envy” is when you covet your friend’s good looks. “Jealousy” is what happens when your significant other swoons over your good-looking friend.


“Nor” expresses a negative condition. It literally means "and not." You’re obligated to use the “nor” form if your sentence expresses a negative and follows it with another negative condition. “Neither the men nor the women were drunk” is a correct sentence because “nor” expresses that the women held the same negative condition as the men. The old rule is that “nor” typically follows “neither,” and “or” follows “either.” However, if neither “either” nor “neither” is used in a sentence, you should use “nor” to express a second negative, as long as the second negative is a verb. If the second negative is a noun, adjective, or adverb, you would use “or,” because the initial negative transfers to all conditions. e.g., He won’t eat broccoli or asparagus. The negative condition expressing the first noun (broccoli) is also used for the second (asparagus).

May and Might

“May” implies a possibility. “Might” implies far more uncertainty. “You may get drunk if you have two shots in ten minutes” implies a real possibility of drunkenness. “You might get a ticket if you operate a tug boat while drunk” implies a possibility that is far more remote. Someone who says “I may have more wine” could mean he/she doesn't want more wine right now, or that he/she “might” not want any at all. Given the speaker’s indecision on the matter, “might” would be correct.

Whether and If 

Many writers seem to assume that “whether” is interchangeable with “if." It isn’t. “Whether” expresses a condition where there are two or more alternatives. “If” expresses a condition where there are no alternatives. e.g., I don’t know whether I’ll get drunk tonight. e.g., I can get drunk tonight if I have money for booze.

Fewer and Less

“Less” is reserved for hypothetical quantities. “Few” and “fewer” are for things you can quantify. e.g., The firm has fewer than ten employees. e.g., The firm is less successful now that we have only ten employees.

Farther and Further

The word “farther” implies a measurable distance. “Further” should be reserved for abstract lengths you can't always measure. e.g., I threw the ball ten feet farther than Bill. e.g., The financial crisis caused further implications.

Since and Because

“Since” refers to time. “Because” refers to causation. e.g., Since I quit drinking I’ve married and had two children. e.g., Because I quit drinking I no longer wake up in my own vomit.

Disinterested and Uninterested

Contrary to popular usage, these words aren’t synonymous. A “disinterested” person is someone who’s impartial. For example, a hedge fund manager might take interest in a headline regarding the performance of a popular stock, even if he's never invested in it. He’s “disinterested,” i.e., he doesn’t seek to gain financially from the transaction he’s witnessed. Judges and referees are supposed to be "disinterested." If the sentence you’re using implies someone who couldn't care less, chances are you’ll want to use “uninterested.”


Unless you’re frightened of them, you shouldn’t say you’re “anxious to see your friends.” You’re actually “eager,” or "excited." To be “anxious” implies a looming fear, dread or anxiety. It doesn’t mean you’re looking forward to something.

Different Than and Different From

This is a tough one. Words like “rather” and “faster” are comparative adjectives, and are used to show comparison with the preposition “than,” (e.g., greater than, less than, faster than, rather than). The adjective “different” is used to draw distinction. So, when “different” is followed by a  preposition, it should be “from,” similar to “separate from,” “distinct from,” or “away from.” e.g., My living situation in New York was different from home. There are rare cases where “different than” is appropriate, if “than” operates as a conjunction. e.g., Development is different in New York than in Los Angeles. When in doubt, use “different from.”

Bring and Take

In order to employ proper usage of “bring” or “take,” the writer must know whether the object is being moved toward or away from the subject. If it is toward, use “bring.” If it is away, use “take.” Your spouse may tell you to “take your clothes to the cleaners.” The owner of the dry cleaners would say “bring your clothes to the cleaners.”


It isn't a word. "Impact" can be used as a noun (e.g., The impact of the crash was severe) or a transitive verb (e.g., The crash impacted my ability to walk or hold a job). "Impactful" is a made-up buzzword, colligated by the modern marketing industry in their endless attempts to decode the innumerable nuances of human behavior into a string of mindless metrics. Seriously, stop saying this.

Affect and Effect

Here’s a trick to help you remember: “Affect” is almost always a verb (e.g., Facebook affects people’s attention spans), and “effect” is almost always a noun (e.g., Facebook's effects can also be positive). “Affect” means to influence or produce an impression — to cause hence, an effect. “Effect” is the thing produced by the affecting agent; it describes the result or outcome. There are some exceptions. “Effect” may be used as a transitive verb, which means to bring about or make happen. e.g., My new computer effected a much-needed transition from magazines to Web porn. There are similarly rare examples where “affect” can be a noun. e.g., His lack of affect made him seem like a shallow person.

Irony and Coincidence

Too many people claim something is the former when they actually mean the latter. For example, it’s not “ironic” that “Barbara moved from California to New York, where she ended up meeting and falling in love with a fellow Californian.” The fact that they’re both from California is a "coincidence." "Irony" is the incongruity in a series of events between the expected results and the actual results. "Coincidence" is a series of events that appear planned when they’re actually accidental. So, it would be "ironic" if “Barbara moved from California to New York to escape California men, but the first man she ended up meeting and falling in love with was a fellow Californian.”


Undoubtedly the most common mistake I encounter. Contrary to almost ubiquitous misuse, to be “nauseous” doesn’t mean you’ve been sickened: it actually means you possess the ability to produce nausea in others. e.g., That week-old hot dog is nauseous. When you find yourself disgusted or made ill by a nauseating agent, you are actually “nauseated.” e.g., I was nauseated after falling into that dumpster behind the Planned Parenthood. Stop embarrassing yourself.

If you’re looking for a practical, quick guide to proper grammar, I suggest the tried-and-true classic The Elements of Style, by William Strunk, Jr. and E. B. White. A few of these examples are listed in the book, and there are plenty more. Good luck!

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Jon Gingerich

Column by Jon Gingerich

Jon Gingerich is editor of O'Dwyer's magazine in New York. His fiction has been published in literary journals such as The Oyez Review, Pleiades, Helix Magazine, as well as The New York Press, London’s Litro magazine, and many others. He currently writes about politics and media trends at www.odwyerpr.com. Jon holds an MFA in creative writing from The New School. Some of his published fiction can be found at www.jongingerich.com.

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Nickels 51's picture
Nickels 51 June 11, 2014 - 12:19pm

What sets my teeth on edge is sentances that are I aint got no more, or I didn't see no, When's that party at? Where are you at? It seems bad english is alive and well.

Bodhi's picture
Bodhi June 15, 2014 - 6:48pm

I'm glad others have picked up on the nauseous/nauseated canard, which seems to limp on from one grammatical error blog post to another. It's unfortunate to see things like this in an article on grammar, since (and I use that word deliberately) it undermines confidence in the rest of the points being made.

I'd also question the since/because distinction: "'Since' refers to time. 'Because' refers to causation." A quick search of Google Books shows that "since" and "because" have been used synonymously for many centuries. Love's Labour's Lost, for example, has "Since you are strangers and come here by chance, We'll not be nice: take hands. We will not dance." In fact the primary meaning of "since" as far back as the 16th and 17th centuries seems to have been "because."

And to say that impactful is "not a word" is absurd. Of course it's a word. It may be ugly and considered déclassé by some, but it's been around longer than most of us commenting on this thread (it seems to go back to the 1930s), and will almost certainly still be in use long after we've all been long forgotten.

grammarwoman's picture
grammarwoman July 6, 2014 - 7:52am

Actually, by standard rule of English grammar, all of the points the writer made here are correct.  Why would people say they are opinion or personal preference?   Look them up in a standard grammar and useage handbook. 

What's curious to me is how many of his examples involve drinking. And the dumpster at Planned Parenthood?  Whatever that's about, it is distracting. 



GeorgeCoast's picture
GeorgeCoast from USA is reading The Trip from Echo Springs July 18, 2014 - 2:45pm

A well written article sometimes encourages clear thinking in the reader's mind. Yours has had that effect on me. In my work, I am not a titled copy editor, and can exercise only minor control of copy, but I am always on the lookout for clumsy or awkward turns of phrase that might confuse or mislead readers. Since my changes are not final, there's always the opportunity for further communication with the authors of the copy I proofread or edit. Your article is something I will pass on to those who are curious enough to challenge my changes or edits. Thank you.

Walkerboy's picture
Walkerboy August 2, 2014 - 9:10pm

Did I read correctly, "Envy is when . . . "? Is not "when" an adverb here used with the intransitive verb "is"? If we described a hypothetical person named John and said, "John is tall" "or John is a man," would we make any sense by saying "John is when?"  Maybe "John will come when . . . " or "John will get his drivers license when . . . " but never "John is when." Thus, "envy is when" should be written "envy is distinguished by, occurs when, happens when" but never "is when."

I need an asprin. 

Joyce Hollman's picture
Joyce Hollman from Kennebunk, Maine is reading The Lords of Discipline, by Pat Conroy; August 11, 2014 - 9:32am

Thank you, thank you, for putting 'impactful' in its place!! I am a teacher who constantly sees other professionals write things like, "This lesson was very impactful for my class." It drives me crazy, especially coming from professional people!  I've been searching for a site that addresses this, so thank you!!!

Kay Suarez's picture
Kay Suarez September 27, 2014 - 10:59am

This was an awesome article, thank you!!

I did look up the word "impactful" on dictionary.com and found this result:

1. having or manifesting a great impact or effect: "After the senator's impactful speech, her bill passed."

I understand the physical dictionary may not have the word, but who has those anymore? And should we not allow our language to evolve a little?

aidanbh's picture
aidanbh from New Zealand is reading Travels in HyperReality September 28, 2014 - 2:57am

The detail you note in the Who/Whom section are correct, but the example is wrong. "I consulted an attorney whom I met in New York," cf. I MET him, not I consulted him. The who/whom relates to the subordinate verb.

Jag 1's picture
Jag 1 November 1, 2014 - 5:49pm

Since and because are synonyms. Check your thesaurus.

Since (from the time when) and since (because) are homonyms.

Carrie Q Contrary's picture
Carrie Q Contrary January 11, 2015 - 8:22am

Yet another grammar article that leaves out "and I vs and me." I see and hear this mistake every single day. Some always default to "and me", but the overwhelming majority of the improper usage is committed by the opposite, folks trying rally hard to sound smart, from politicians to talking heads to academics everywhere, almost always defer to "and I" at the end of the preposition. I have yet to see this addressed anywhere.

Eric J Golub's picture
Eric J Golub January 19, 2015 - 3:09am

Moot also means of little or no practical value, so technically that's different from superfluous, but it's semantics.  That's a picky addition to what is overall a nice article.

El_Tucan's picture
El_Tucan February 13, 2015 - 8:34pm

I feel like I needed a degree reading this. That or should have paid more attention in high school.

grammar717's picture
grammar717 March 10, 2015 - 12:27am

Hello Jon,

Thank you for an informative and helpful website, particularly about 20 common grammar mistakes.  Has some useful tips.  I came across the following sentence in one part--

My new computer effected a much-needed transition from magazines to Web porn.


With that, I will not visit your site again, unless I know that it was removed. 


Ron Millar

idgaf's picture
idgaf April 29, 2015 - 7:52pm

Principal vs Principle


Annie Rachele Lanzillotto's picture
Annie Rachele L... July 1, 2015 - 5:50am

'til v. till v. until?

Can you clarify for me?

I think of till as till the soil.

what's the correct 'til????

Zeroconduct's picture
Zeroconduct October 26, 2015 - 1:31am

"Words do not mean what we individuals might wish them to mean, but what speakers of the language in general what them to mean"

BookCollecting101's picture
BookCollecting101 May 15, 2016 - 7:21pm

I have noticed folks using the word "utilize" when a good ol' use would work just as well or better. It seems as though these folks are trying to use a $200.00 word when a $1.00 word works as well or better. It seems as though they are trying to say, "Look how smart I am - I can use (utilize) big words in a way you would not use (utilize) them... It always bugs me - like fingernails scratching a chalk board...

Margie Cooley Broschinsky's picture
Margie Cooley B... August 29, 2016 - 10:17pm

I would have expected "I and Me" to be on this list . . . at the top. Wouldn't you say this is one of the most common grammar mistakes? 


LilLei Potter's picture
LilLei Potter November 27, 2016 - 10:16am

@adrianmander In my case, I often learn rules through observation and confirm them through books or websites.

_Anonymous_'s picture
_Anonymous_ December 4, 2016 - 12:10pm

Super useful! Thanks! 

The Muffintime's picture
The Muffintime January 16, 2018 - 9:10pm

Overall, this is a nice article.  I do, however, disagree with a few of your points.  Many of the words that you claim are used incorrectly are wonderful examples of the continually evolving state of the English language.  Words like "impactful" may have been absent from the dictionary 20, 50, or 100 years ago but have through common usage entered into our lexicon.  When you say something like "seriously, stop it," it signals to me that it's something of a pet peeve of yours, which casts into doubt your ability to be impartial in that instance.  

Anyway, the point I'm trying to make is that new words are created and old words evolve through use.  This is a phenomenon that has given our language one of the richest and most colorful vocabularies out there.  Yesterday's mistakes are today's standards!

P.S. I do agree that things like "fewer" and "less" are mixed up erroneously.  There's a difference between evolving word usage and simply mixing up words.

P.P.S. One of my biggest pet peeves is something that you didn't mention - using "and I" when people should say "and me."  This is a great example of overcorrection; we've had it drilled into our heads that we should use the subject pronoun I in almost every case.  The result is a tragic loss of the object pronoun me.  I've seen this mistake made in books, TV shows, and naturally in everyday speech.  When I see a sentence like "the ball was kicked by you and I" or "our mother bought my brother and I a new toy" instead of "you and me" and "my brother and me" I can't help but let out a groan!  Hearing something like "John took my friend and I for a ride in his new car" is incredibly common even in movies or TV shows.  There's simply no good excuse for that!!!

Aerie's picture
Aerie June 12, 2019 - 4:26am

A bit late to the party here, but I have to weigh in: you're categorically wrong about the misuse of nauseous. The dictionary definition is "feeling sick/causing nausea" for both British and US English, as well as the example you give. It's almost certainly a quirk of usage - nobody in the UK says "nauseated", which is a very American turn of phrase. We always take about nausea and feeling nauseous, and neither of us is wrong.