10 Common Grammar Myths Debunked

You hand in a story you’re quite proud of. The teacher likes it, but in the margin they’ve written things like “Never start a sentence with and” or “Don’t use contractions in formal writing”.

Then you open a book by a famous author and the first line is:

“And then everything changed.”

So… are the writers breaking the rules, or has someone been scaring you with rules that don’t really hold up?

Here’s the thing. A lot of what people call “grammar rules” are actually half‑truths, old‑fashioned preferences, or tips that only apply in very specific situations. If you treat them as absolute laws, they can make your writing stiff and make you nervous for no good reason.

This is about taking that weight off your shoulders.

Before you read on, here's where we're heading. By the end you'll be able to: - Spot 10 of the most common “fake rules” people quote at school. - Explain which bits of them are useful, and which you can happily ignore. - Make confident choices about things like starting with and, splitting infinitives, and using they for one person. - Understand why some myths exist, and when teachers still care about them in exams.

Beginner (Foundation): What Grammar Myths Are – and Why They Spread

Let’s start simple. A grammar myth is a “rule” people repeat as if it’s always true, even though:

• it doesn’t match how good writers actually use English, or
• it only really matters in very formal or old‑fashioned writing, or
• it was never a rule in the first place.

Nobody’s born knowing which rules are real and which are myths. Most of us just pick up whatever the strictest teacher we met once shouted about.

I’ll walk you through 10 of the biggest myths you’re likely to hear at school, at home, or online. At this beginner stage, I’ll give you the basic “true or false” answer and one simple example for each. Then we’ll dig deeper later.

Myth 1: “Never start a sentence with and or but.”

You absolutely can start a sentence with and or but.

And then the lights went out.
But nobody believed her.

Open almost any novel and you’ll see writers doing this. It’s a normal way to link ideas and control the rhythm of your writing.

What your teacher might mean is: “Don’t start every sentence with and or but, and don’t rely on it when you could write a clearer sentence.” That’s fair advice. But it’s not a ban.

Myth 2: “Never split an infinitive.”

The infinitive is the basic form of a verb: to go, to eat, to see.

“Splitting” it means putting an adverb in the middle:

to boldly go
to quickly finish

Some people claim you must always write “to go boldly” instead of “to boldly go”. That’s the myth. In modern English, it’s fine to split infinitives if the sentence sounds better or clearer that way.

Myth 3: “You must not end a sentence with a preposition.”

A preposition is a little word like to, in, at, with, for, on.

The myth says you can’t finish a sentence with one:

✗ Who are you talking to?
✓ To whom are you talking?

The “correct” version there sounds stiff and old‑fashioned. In normal modern English, ending with a preposition is completely acceptable:

That’s the friend I was talking about.
What are you looking for?

Myth 4: “Contractions are wrong.”

Contractions are short forms like don’t, can’t, won’t, I’m, we’re.

They’re not “wrong”. They’re just more informal. In stories, letters to friends, and most emails, contractions are natural.

You might want to avoid them in very formal exam answers or official applications, but they’re not ungrammatical.

Myth 5: “You can’t use they for one person.”

You use singular they all the time without thinking:

Someone left their bag in the classroom.
Tell whoever called that I’ll ring them back.

When you don’t know the gender, they/them/their is the most natural choice. It’s also what many people now prefer as their personal pronoun (“Sam forgot their keys”).

Old textbooks may tell you to use he or he or she instead. Modern English doesn’t insist on that.

Myth 6: “I is always more correct than me.”

You’ve probably heard adults correct children:

Child: Me and Jake are going to the park.
Adult: Jake and I are going to the park.

The adult is right there — in that sentence, it should be Jake and I. But some people over‑correct and end up with:

✗ The teacher gave the books to Jake and I.

In that one, me is correct: “gave the books to me” → “gave the books to Jake and me”.

So I is not “more correct” than me. They just have different jobs.

Myth 7: “Long words and complex sentences make your writing better.”

Let’s be honest — some people think big words make them look clever. But writing is good when it’s clear, not when it’s confusing.

We utilised the apparatus in order to facilitate the experiment.
vs
We used the equipment to carry out the experiment.

The second one is better writing. Shorter and clearer.

Myth 8: “Passive voice is always bad.”

You might have been told to “avoid the passive”. The passive voice is when the object comes first:

Active: The dog bit Ben.
Passive: Ben was bitten by the dog.

The passive can be weak if you use it all the time. But sometimes it’s exactly what you want:

The window was broken during the night. (You don’t know who did it.)
The exam papers will be collected at 3 p.m. (The doer isn’t important.)

So it’s not “wrong”. It’s just a tool.

Myth 9: “You should never repeat a word.”

Teachers sometimes say, “Don’t repeat yourself.” What they usually mean is: don’t repeat unnecessarily.

But forcing variety can make your writing weird:

✗ I saw a dog. The canine was very friendly. The animal wagged its tail.

If it’s the same dog, it’s fine to keep saying dog. Readers prefer clarity to clumsy variety.

Myth 10: “Texting is ruining your grammar.”

You’ve probably seen people panic about this online. Yes, texting and social media use lots of slang, emojis, and shortcuts (u, lol, brb). That’s a different register — a casual style — not “bad grammar”.

Most young people are perfectly capable of switching to Standard English when they need to. The skill you really need is knowing which style fits which situation.

Common Mistake:
Believing that because you’ve heard a rule loudly and often — especially from an adult — it must be absolutely true in every situation. Volume doesn’t equal correctness.

Quick recap:
- A grammar myth is a “rule” people treat as universal when it isn’t.
- Starting a sentence with and or but is fine when it helps your meaning.
- Splitting infinitives, ending with a preposition, and using contractions are all allowed in modern English.
- Singular they is normal; I isn’t always “better” than me.
- Clear, accurate writing beats long, fancy, or over‑complicated writing.

Intermediate (Development): The Real Rules Behind the Myths

Now let’s look at those 10 myths again, but this time we’ll unpack why they appeared and what you should actually do in your schoolwork and exams.

Think of this as upgrading from “That’s a myth” to “I know when this advice is helpful and when it’s nonsense.”

1. Starting with and or but

Some teachers tell younger pupils not to start with and/but because small children often write like this:

And I went to the park. And I saw a dog. And it was big. And it barked.

So the rule began as a classroom trick: “Try not to start sentences with and/but — use other ways to link your ideas.”

By secondary school, though, you’re capable of more control:

I went to the park. And I saw a dog. But it ran away before I could pat it.

Here, the and and but add rhythm and emphasis. That’s good writing.

In exams and essays:
It’s absolutely fine to start with and/but occasionally, especially in creative or persuasive writing. Just don’t overdo it. If every other sentence starts that way, it looks lazy.

Pro‑Tip:
Try this: write the sentence with And or But at the start. Then remove it and see whether the sentence still works. If the meaning or emphasis changes in a good way with And/But, keep it. If nothing changes, cut it.

2. Splitting infinitives

This myth comes from people trying to make English behave like Latin, where infinitives are one word (like amare = to love) and can’t be split.

English is different. We say to love, to see, to go — two words, and we can put things in between.

Sometimes you actually need to split the infinitive for clarity:

She decided to gradually get rid of her old clothes.

If you move gradually:

She decided gradually to get rid of her old clothes. (Sounds like she hesitated.)
She decided to get rid of her old clothes gradually. (Sounds like the clothes go slowly, not the decision.)

The “split” version is the clearest.

In school writing:
Examiners for modern exams don’t mark you down for splitting infinitives. They care more about clarity and flow.

3. Ending with prepositions

The “no preposition at the end” rule also came from Latin, where you usually don’t end sentences with them. In English, forcing the preposition away from the end often sounds unnatural:

What are you thinking about? (Normal)
About what are you thinking? (Very formal and fussy)

Sometimes you can rewrite in a better way:

The book I told you about → The book I mentioned

But don’t twist sentences just to avoid a perfectly natural ending:

That’s the friend I was talking about. – fine.

In exams:
Teachers of very formal writing might still prefer you to avoid finishing with a preposition if there’s an easy, smooth alternative. But you won’t be “wrong” if you do it.

4. Contractions

Contractions help your writing sound more like speech. That’s why you see them in dialogue and informal writing:

“I don’t know,” she said. “I can’t see anything.”

In very formal essays you might decide to write out the full forms (do not, cannot, will not). It feels slightly more serious and distant.

But saying “Contractions are wrong” is simply false. They’re part of Standard English.

In school writing:

• Creative writing, speeches, stories, personal essays: contractions are usually fine and often better.
• Very formal essays, exam answers in subjects like history or science: check school guidelines, but many teachers still prefer fewer contractions.

5. Singular they

Older grammar books say things like:

Someone left his umbrella.
or
Someone left his or her umbrella.

Modern usage guides accept:

Someone left their umbrella.

Why? Because people have been saying it for centuries, and it’s far easier and more inclusive.

Also, more people nowadays ask to be referred to as they/them:

Alex said they’re going to join us later.
I saw Sam yesterday; they were on their way to work.

In school / exams:
Most exam boards accept singular they as Standard. You won’t lose marks for writing:

If a student forgets their pen, they can borrow one.

6. I vs me

Here’s the real rule, in simple terms.

Use me when it’s the object (the one having something done to them).

The teacher called Jake and me.

Use I when it’s the subject (the one doing the action).

Jake and I went to the match.

A quick test: remove the other person’s name and see what sounds right.

I went to the match. (Correct)
Me went to the match. (Wrong)
So: Jake and I went to the match.

The teacher called I. (Wrong)
The teacher called me. (Correct)
So: The teacher called Jake and me.

Why the myth spreads:
People are so used to correcting “Me and Jake” at the start of a sentence that they start thinking I is always more formal and therefore “better”. It isn’t. It’s just different.

7. Long words and complex sentences

Sometimes exam mark schemes use phrases like “sophisticated vocabulary” or “varied sentence structures”. That leads students to believe: longer = higher mark.

The truth is more subtle:

• Using a more precise word can help (furious instead of very angry).
• Varying sentence length can create interesting rhythm.

But long, tangled sentences full of vague long words won’t impress anyone.

Compare:

Due to the fact that the experiment was unsuccessful, it was necessary for us to repeat it on another occasion.
vs
Because the experiment failed, we had to repeat it later.

The second is clearer and more direct — and that’s what examiners like.

8. Passive voice

Teachers say “Avoid the passive” because students often write:

Mistakes were made.
The ball was kicked.

…which can be dull and vague.

But the passive is handy when:

Who did it doesn’t matter:

The exam will be marked next week.

You don’t know who did something:

Our window was broken last night.

In school writing:

• Use the active voice by default; it’s stronger and clearer.
• Use the passive when you have a good reason — not because you think it sounds clever.

9. Repeating words

Variety is good when it helps the reader:

The weather was hot and sticky. By midday, the heat was almost unbearable.

But forced variety can be distracting:

My teacher gave us homework. The educator said the assignment was important.

Just say teacher again, or replace it once with a natural pronoun:

My teacher gave us homework. She said it was important.

If the same word is doing an important job, you’re allowed to use it more than once.

10. “Texting grammar” vs “school grammar”

You might text:

omg that test was brutal lol

You would not write that in an English exam — and you know that.

Using different styles in different situations is called code‑switching. Most people already do it:

• talking to a friend vs talking to a headteacher
• writing a WhatsApp message vs writing a cover letter

The myth that “texting is ruining grammar” assumes people can’t switch. In reality, if you practise both styles, texting can actually make you more aware of language choices.

Common Mistake:
Trying so hard to avoid a “myth” (like the passive voice or repeated words) that your sentences become awkward. Don’t let fear of rules — real or fake — get in the way of saying what you mean.

Quick recap:
- Many myths grew from well‑meant classroom shortcuts or copying Latin.
- Start with and/but when it genuinely helps the flow.
- Split infinitives and end with prepositions when they make the sentence clearer.
- Use contractions and singular they freely, unless you’re following a very strict formal style.
- Focus on clarity and accuracy first; “fancy” features come second.

Advanced (Mastery): Nuance, Style, and When Myths Still Matter

If you’ve made it this far, you’re ready for the grown‑up conversation: some of these myths do still matter a little in specific situations.

Not because they’re “true grammar”, but because exams, teachers, and some readers have expectations. Think of it as understanding not just the rules, but the social side of grammar.

Myth 1 in depth: And/But at the start of a sentence

Style guides for very formal writing sometimes suggest avoiding sentence‑initial conjunctions, not because they’re wrong, but because they can sound chatty.

So:

However, the results were inconclusive.

…might suit a science report better than:

But the results were inconclusive.

But if you’re writing an argumentative essay in English, that “But” can be powerful:

Many people believe school uniforms improve behaviour. But the evidence doesn’t really support that idea.

Here, the “But” acts like a drumbeat — it signals a clear turn in your argument.

Advanced tip: Think about rhythm and emphasis. Starting with and/but gives a small pause before the word, which can be dramatic. Use it on purpose, not by accident.

Myth 2 in depth: Splitting infinitives and rhythm

Prosody is the rhythm and stress pattern of your sentence. Often, the best place for an adverb is exactly between to and the verb:

to really understand this
to fully recover

Try moving them:

to understand this really (odd stress)
to recover fully (fine, but a slightly different rhythm)

At advanced level, you’re allowed to care about rhythm. If someone ever challenges you on a split infinitive, ask them calmly: “Does my version sound clearer or less clear to you?” That’s what matters.

Myth 3 in depth: Prepositions and formality

There are moments where avoiding a sentence‑final preposition can genuinely sound more elegant:

The principles on which this theory rests are…

…is smoother than:

The principles this theory rests on are…

But in many sentences, forcing the preposition away can create ugly “which/whom” structures your reader has to untangle.

Advanced principle:
Let meaning and grace guide you. If avoiding the final preposition leads to a heavy or absurd sentence (“This is the kind of nonsense up with which I will not put”), don’t do it.

Myth 4 in depth: Contractions and voice

As you go on in education, you’ll write in different voices:

• Academic voice (essays, research): often fewer contractions, more distance.
• Journalistic or creative voice: more contractions, more immediacy.

Knowing when to contract isn’t about right/wrong; it’s about matching expectations.

If your English teacher marks you down once for using don’t in an essay, don’t panic. Just file it under “This teacher prefers a slightly more formal style” and adjust for that class.

Myth 5 in depth: Singular they and sensitivity

Using singular they is not only grammatically acceptable — it’s part of being respectful in many contexts.

Be aware, though:

• Some older examiners or teachers may still have a personal preference for he or she in very formal writing where the gender is unknown and you’re not referring to a specific person.
• When someone tells you their pronoun is they, that’s no longer a grammar debate; it’s about courtesy.

At advanced level, you’re not just following rules — you’re making considerate choices.

Myth 6 in depth: I vs me and hypercorrection

Hypercorrection is when someone over‑applies a rule and ends up wrong. “between you and I” is a classic example.

You’ll hear it from people trying to sound posh. Don’t be intimidated by that. Being able to explain calmly why “between you and me” is correct shows genuine understanding.

Myth 7 in depth: Complexity vs sophistication

Examiners and teachers really want:

• precise vocabulary
• variety in sentence structure
• control over tone

You can show all of that without writing like a Victorian legal document.

A sophisticated sentence doesn’t have to be long; it just has to be well balanced:

Although the data seemed reliable at first, several errors appeared when we repeated the experiment.

That’s complex and clear.

Myth 8 in depth: Passive voice and responsibility

In real life, the passive can be used to hide who’s responsible:

Mistakes were made. (By whom?)
The window was smashed. (Yes, but who did it?)

At advanced level, notice when politicians, companies, or institutions use the passive this way. Sometimes you want to push back and ask: “Made by whom?” Switching to the active can make the truth clearer.

In your own writing, use the passive deliberately, not as a way to duck responsibility.

Myth 9 in depth: Repetition for effect

Repetition can be a powerful rhetorical device:

We will not give up. We will not back down. We will not be ignored.

That’s not lazy repetition; it’s emphasis.

What teachers object to is unthinking repetition, especially of vague words like thing, stuff, really. Repeating a key noun or phrase on purpose can actually strengthen your point.

Myth 10 in depth: Code‑switching as a skill

Being able to flip between:

“brb lol”

and

“I will return shortly; that test was extremely challenging”

…is not a sign your grammar is broken. It’s a sign your language toolkit is large.

At advanced level, notice how you speak/text with different groups and in different subjects. That awareness is a major part of language mastery — far more interesting than panicking over whether and can start a sentence.

Pro‑Tip:
When you hear someone insist on a myth (“You can’t end a sentence with with!"), ask yourself three questions:
1) Does this match what good writers actually do?
2) Does this help clarity?
3) Is this about grammar, or just about someone’s taste or sense of tradition?

Quick recap:
- Myths live on mainly as style preferences in very formal contexts.
- At advanced level, you balance clarity, rhythm, respect, and expectations.
- You can break old “rules” deliberately when it improves your writing.
- Hypercorrection (“between you and I”) sounds fancy but is wrong.
- Code‑switching between texting style and Standard English is a strength, not a flaw.

UK vs US Usage

Because you’ll meet both British and American English online, it’s worth knowing where real differences sit — and where myths confuse things.

For these 10 myths, UK and US English mostly agree:

• Writers on both sides use sentence‑initial And/But.
• Both accept split infinitives.
• Both end sentences with prepositions.
• Both use contractions in informal and semi‑formal writing.
• Both are increasingly comfortable with singular they.

A couple of smaller points:

• Spelling: You’ll see colour [US: color], organise [US: organize], centre [US: center]. That’s spelling, not grammar.
• Formality expectations: Some US school teachers can be a bit stricter about contractions and sentence‑starting And/But in essays. Some UK teachers can be stricter about I/me and passive voice. But there’s a lot of overlap.

So if an American website tells you “Never use the passive”, or a British relative says “Never end on a preposition”, treat both as personal style, not universal law.

Quick recap:
- UK and US writers share the same reality about these myths.
- Main differences are spelling, not grammar rules.
- Individual teachers may have different preferences — follow them for that class.
- Online “rules” from either side of the Atlantic aren’t always official truth.

Key Takeaways

• Many “rules” you’ve heard — about and/but, split infinitives, prepositions, and contractions — are myths or over‑simplifications.
• Real grammar is about meaning and patterns; myths are often about old habits and personal taste.
• You can use singular they, the passive voice, and repeated words without breaking English.
• The smart move is to know both: what careful writers actually do, and what your particular teacher or exam prefers.
• Your goal isn’t to obey every shouted “rule”; it’s to write clearly, accurately, and with confidence.

Check Your Understanding

Questions

1. Which sentence is the best choice for clear, modern English?
   a) To boldly go where no one has gone before.
   b) To go boldly where no one has gone before.
   c) Boldly to go where no one has gone before.
2. In which sentence is me correct?
   a) Me and Jake went to the shop.
   b) The teacher told Jake and me to hurry.
   c) The teacher told Jake and I to hurry.
3. Rewrite this sentence in clear Standard English, keeping the meaning:
   Someone left his or her pencil case in the lab. He or she can collect it later.
4. True or false: In a modern English exam, you will automatically lose marks for starting a sentence with But.
5. Spot one grammar myth in this sentence:
   We must never end sentences with prepositions, and texting is destroying the English language.

Internal Links (Pillar 1 Articles)

This article should link to:

• “What Is Grammar?” — for a deeper look at what grammar really is (beyond scary rules).
• “Standard English, Dialects, and ‘Correctness’” — for more on code‑switching, formality, and why “correct” can mean different things in different places.