10 Confusing English Grammar Rules Explained for Beginners

If English grammar were a person, it would be that unpredictable friend—always changing the rules, confusing you in the middle of a sentence, and somehow still expecting you to keep up. From strange spelling rules to confusing word choices, English has many grammar points that make learners stop and ask, “Wait… what?”

1. The Rule: “I Before E Except After C” — Why It Doesn’t Always Work

2. Who vs. Whom — Which One Should You Use?

3. “None Is” vs. “None Are” — Both Can Be Correct

4. Less vs. Fewer — Know When to Use Each One

5. Irregular Verbs — How to Use Past Forms

6. Me vs. I — Which One Is Correct?

7. The Oxford Comma — What It Is and Why It Matters

8. Lie vs. Lay — Very Common Mistake

9. That vs. Which — What’s the Difference?

10. Double Negatives — Why They’re Confusing

Quick Review Table

Grammar Isn’t Just Rules—It’s a Skill You Can Master

Learn English the Right Way with IELC

But don’t worry. We’re going to explain these grammar rules in a way that actually makes sense. No hard words, no complicated theory—just clear and useful tips. Struggling with tricky English grammar rules? Learn the most confusing ones with simple explanations and examples made for beginners.

1. The Rule: “I Before E Except After C” — Why It Doesn’t Always Work

You may have learned this spelling rule before:

“I before E, except after C.”
This means: write I before E, unless the letters come after C.

Examples where the rule works:

Believe
Piece
Chief

But many common words break this rule:

Weird
Neighbor
Science

So what’s going on?
English borrows many words from other languages. That’s why spelling doesn’t always follow the rules. This rule only works in some cases.

Tip: If you’re not sure how to spell a word, check a dictionary or search online. No need to memorize every exception.

2. Who vs. Whom — Which One Should You Use?

This rule confuses many learners (and even native speakers).
Should you say:

Who is calling?
or Whom should I ask?

The difference:

Use who when the word is the subject (the one doing the action).
Use whom when the word is the object (the one receiving the action).

Examples:

Who called you? → He called me. (Use “who”)
Whom did you call? → I called him. (Use “whom”)

Simple trick:
If you can replace the word with he/she/they, use who.
If you can replace it with him/her/them, use whom.

Bonus tip: In daily conversations, most people use who all the time—even when whom is correct. It’s fine. Just focus on understanding the difference for now.

3. “None Is” vs. “None Are” — Both Can Be Correct

Some people say it must be “None is” because “none” means “not one.” But in real life, people also say “None are.”

Both can be correct, depending on the noun:

None of the cake is left. → Cake is uncountable → use is
None of the students are ready. → Students are countable → use are

Tip: Look at the word after “none.” If it’s a singular thing, use is. If it’s a plural noun, use are.

4. Less vs. Fewer — Know When to Use Each One

You might see signs in stores that say:
→ 10 items or less

But actually, it should say:
→ 10 items or fewer

Here’s the rule:

Use fewer for things you can count: apples, books, students
Use less for things you can’t count: water, time, money

Examples:

Fewer mistakes, less stress
Fewer bottles, less juice

Tip: Don’t worry too much—this rule is often broken in casual English. But it’s good to know the correct version.

5. Irregular Verbs — How to Use Past Forms

Some verbs in English don’t follow the normal pattern when talking about the past. These are called irregular verbs.

Examples:

Go → went → gone
Begin → began → begun
Lie → lay → lain

How to use them:

Use the second form for simple past: She began her speech.
Use the third form with has/have/had: She has begun her speech.

Wrong: I have went to the store.
Right: I have gone to the store.

Tip: These verbs don’t follow normal rules. You just have to remember them.

6. Me vs. I — Which One Is Correct?

Many people say “I” when they think it sounds more proper, but that’s not always true.

Wrong: He gave the book to Sarah and I.
Right: He gave the book to Sarah and me.

Trick: Remove the other person and test the sentence.
Would you say He gave the book to I? Of course not. You would say He gave the book to me.

Also:

I went to the store (correct)
Me went to the store (incorrect)

Tip:

Use I when the person is the subject.
Use me when the person is the object.

7. The Oxford Comma — What It Is and Why It Matters

The Oxford comma is the comma before the last item in a list.

Without Oxford comma:

I love my parents, Beyoncé and God.
(This sounds like your parents are Beyoncé and God.)

With Oxford comma:

I love my parents, Beyoncé, and God.
(This version is clear.)

Tip: The Oxford comma is optional, but it helps avoid confusion. Use it if leaving it out makes the sentence unclear.

8. Lie vs. Lay — Very Common Mistake

Even native speakers mix these up. But there’s a simple way to remember:

Verb	Meaning	Example
Lie	To rest or recline	I lie down every day.
Lay	To put something down	I lay the book on the table.

Past forms:

I lay down yesterday. (past of lie)
She laid the book down. (past of lay)

Easy tip:

You lie on the bed.
You lay your phone on the table.

9. That vs. Which — What’s the Difference?

That gives important information.
Which gives extra information.

Examples:

The car that is blue is mine. (This tells which car you mean.)
The car, which is blue, is mine. (All the cars are yours. This just adds a detail.)

Tip: In formal writing, use that when the sentence needs the info to make sense. Use which when it’s just extra detail.

10. Double Negatives — Why They’re Confusing

Wrong: I don’t know nothing.
In English grammar, double negatives cancel each other out. So this sentence actually means “I know something.”

Correct version: I don’t know anything.

Note: In some cultures and music, double negatives are used for emphasis. But in formal or academic English, avoid them.

Quick Review Table

Rule	Quick Tip
I before E	Doesn’t always work—check the word
Who vs. Whom	Use “who” for subjects, “whom” for objects
None is/are	Depends on the noun—both can be correct
Less vs. Fewer	Countable = fewer, uncountable = less
Irregular Verbs	Memorize their past forms
Me vs. I	Remove the other person to test it
Oxford Comma	Use if needed for clarity
Lie vs. Lay	Recline = lie, place = lay
That vs. Which	That = needed info, which = extra info
Double Negatives	Avoid in formal English

Grammar Isn’t Just Rules—It’s a Skill You Can Master

English grammar can be confusing, especially when the rules don’t always make sense. But once you understand the patterns, things get easier. You don’t need to be perfect—you just need to understand enough to use English with confidence.

And if you’ve come this far, you’re clearly serious about improving your English. But reading alone won’t get you fluent.

Learn English the Right Way with IELC

At IELC, we help you learn English in a way that actually works. We don’t just teach rules—we help you understand how to use English in real life. Whether you want to speak clearly, write better, or prepare for exams or interviews, IELC has the right course for you.

Our classes—both online and in-person—are fun, practical, and led by friendly teachers who care about your progress.

Visit us to find the course that’s right for you.
Let’s make English your strong point—not something that holds you back.

At IELC, we teach English the right way

Our goal is to get you speaking in English with fluency and confidence as fast as possible. We want to give you the skills you need to fulfill your potential!

Our experienced teachers will guide you along every step of the learning process to ensure that you are not wasting your time, money, and energy on useless language exercises & wrong methods.

Our courses

With our modern campus and technology, we are equipped to provide the best possible courses for children, teens, and adults, including:

Online courses for kids

Online courses for teens

Online courses for adults

On campus courses for kids

On campus courses for teens

On campus courses for adults

Online and on campus IELTS courses

Online and on campus TOEFL PBT courses

Online and on campus TOEFL iBT courses

We offer our classes in group classes or private classes.