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Author:
Angela Martinez
Knowing English punctuation rules is essential if you want to become a better writer. And we’re not just talking about proper comma use, either.
Documenting your progress in a project at work, passing an English writing exam to get into your dream university, or writing a cover letter for a job application – these are all tasks that require good punctuation.
Don’t worry, though, we’ve got you covered! With the help of this handy guide, you can begin mastering the essentials of English punctuation rules with examples, and you might even help your native speaking colleagues fix their punctuation mistakes!
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English punctuation marks you should know
There’s more to English punctuation besides commas, periods, question marks and exclamation points. Take a look at this comprehensive list of punctuation marks in English, what we use them for, and some examples of how they work.
List of English punctuation marks and their use
1. Period / Full stop ( . )
Common use:
Ending a sentence
Abbreviating items
Examples:
I am traveling to New York next week.
Mr. William has a B.A. in Biology.
2. Comma ( , )
Common use:
Listing items
Connecting clauses
Adding information
Examples:
We bought a shirt, a dress and a new bag.
Due to the weather, we cancelled our plans for the weekend.
The U.K., which has many prestigious universities, is an attractive destination for international students.
3. Question mark ( ? )
Common use:
Asking questions
Examples:
Could you help me with my bags?
Where is the nearest train station?
4. Exclamation point ( ! )
Common use:
Giving a command
Expressing a strong emotion
Examples:
Stop eating all the cookies!
I just got a new promotion at work!
5. Semicolon ( ; )
Common use:
Separating independent clauses
Writing a complex list
Comparing or contrasting two ideas
Examples:
We are working on an urgent request; we will not be available until the afternoon.
During our last trip to Asia, we visited Shanghai, China; Tokyo, Japan and Seoul, South Korea.
You would be great for this role; however, the company has a hiring freeze at the moment.
6. Colon ( , )
Common use:
Connecting two related sentences
Drawing a conclusion
Introducing a list
Examples:
Emperor penguins are excellent swimmers: they can dive as deep as 200 meters or more!
She understood her mistake as soon as she took the cake out of the oven: she hadn’t added enough baking soda.
When you pack for a camping trip, you should make sure you bring the following: a flashlight, a tent and a water filter.
7. Apostrophe ( Text' )
Common use:
Showing possession
Using contractions
Examples:
My car’s battery needs an upgrade as soon as possible.
There’s an outlet on that wall to charge your phone if you need it. Mine’s still charging.
8. Quotation marks ( "Text")
Common use:
Introducing direct quotes
For titles of short works like poems, TV episodes, song titles or articles
Examples:
When Shakespeare wrote Hamlet, he may not have known how popular the line “To be or not to be, that is the question” would become
The most-watched episode of the American TV series Friends is titled “The One After the Super Bowl.”
9. Parentheses ( Text )
Common use:
Inserting non-essential information in the middle of a sentence
Examples:
Titanic (the film) was one of the most popular cultural events of the late 1990s.
The New England states (Massachusetts, Maine, Vermont, New Hampshire, Connecticut and Rhode Island) are well known for their fall foliage and picturesque landscapes.
10. Hyphen ( - )
Common use:
Creating compound words
For phone numbers
Examples:
We try to visit my mother-in-law at least once a week.
My phone number is 555-333-4444
11. En dash ( – )
Common use:
Showing connection
Indicating a range
Examples:
I’m taking the Boston–London redeye flight next week.
The show is three hours long, so we will be unavailable from 4–7pm.
12. Em dash ( — )
Common use:
Adding important information
Can be used instead of a comma, parenthesis or colon
Examples:
The local diner—which opens at 5:45am—is a popular breakfast spot.
We are delaying the launch until we can ensure the product’s safety — whether the board members agree with it or not.
13. Ellipses ( … )
Common use:
Introducing a pause
Replacing words in a quote
Examples:
Am I happy with the decision? I mean… perhaps I should have thought about it a bit longer.
The quote “Life is like a box of chocolates…” is from the film Forrest Gump.
14. Slash ( \ )
Common use:
Separating alternatives
Writing dates
Examples:
You can provide your passport and/or your driver’s license when opening a bank account.
Fall classes will begin on 09/02/2025.
English punctuation and meaning
Even simple punctuation mistakes can make a big difference in the meaning of a sentence. Notice how comma and apostrophe placement affect the meaning of the sentences below.
Comma placement changes meaning
Stop fighting Anna!
Stop fighting, Anna.
In example A, the speaker is asking someone to stop fighting Anna. In example B, the speaker is asking Anna to stop fighting.
We need to buy coffee cups and sugar.
We need to buy coffee, cups and sugar.
Example C tells us that the speaker wants to buy two things: (1) coffee cups and (2) sugar. In example D, the speaker wants to buy three things: (1) coffee, (2) cups and (3) sugar.
Apostrophe placement changes meaning
The student’s grades have been improving – all six of them!
The students’ grades have been improving – all six of them!
Sentence A refers to only one student who has six grades. Sentence B refers to six students.
More English punctuation rules with examples
Now that we’ve covered some common English punctuation marks, it’s time to dive deeper into how punctuation and grammar work together in English.
Punctuation marks are not only decorative; they play a crucial role in English grammar.
Using commas properly
Commas are an essential component of various English grammar structures. Besides making lists, we can use commas in the following cases.
1) Commas with coordinate adjectives to describe a noun
We add commas when using two or more coordinate adjectives to describe a noun. Coordinate adjectives are words that describe a similar feature of a noun. They are underlined in the examples below.
The wealthy, influential celebrity made a brief, unexpected visit to the gallery.
Our product’s new, innovative feature gives high school math teachers a better way to test student learning.
2) Commas in compound and complex English sentences
Commas are also essential for writing compound sentences, which combine two connected ideas with the use of a comma and a coordinating or correlative conjunction. In the examples below, the conjunctions are underlined.
The grass is not always greener on the other side, so you should think about your choices before deciding.
Just as speaking a second language is important for your career, so is understanding artificial intelligence.
Commas carry out a key function when making complex sentences, which combine a dependent and independent clause. Commas are added when the dependent clause comes before the independent clause.
Because we need to make budget cuts, we are postponing our new product launch until the next quarter.
Until we can address our supply chain issues, we are postponing our new product launch.
3) Commas with relative clauses
When introducing non-essential information in a sentence, you can place the relative clause between two commas.
Our next-door neighbor, who moved in last year, is selling his home.
My previous role in the company, which was in the sales department, was more demanding than this role.
(Need a refresher on relative clauses? Take a look at our guide to relative clauses.)
The role of apostrophes in English grammar
While periods (full stops) are the most essential punctuation mark in English, and commas are among the most widely used and versatile, apostrophes are also key to clear written communication.
Apostrophes are used for two things: possession and contractions.
Using apostrophes to show possession
The possessive apostrophe is by far the most frequently used structure to show one noun is related to another. It helps keep sentences short and simple.
Without an apostrophe: The car that belongs to the manager is always parked in front of the building.
With an apostrophe: The manager’s car is always parked in front of the building.
In this sentence, the apostrophe followed by “s” shows that the manager owns the car. If the noun with the apostrophe is plural, though, the apostrophe goes after the “s,” as in the example below.
The students’ attitudes quickly changed when they realized the exam’s importance.
Apostrophes for making contractions
Learning how to use apostrophes to make contractions is a fundamental step in mastering basic English grammar. When properly constructed, contractions can become a shortcut to get your message across less formally.
Example conversation with contractions:
A: I’d like to book a room for tomorrow, please. (I’d = I would)
B: Unfortunately, we’re fully booked for the next week. (we’re = we are)
A: There aren’t any other hotels in the area, are there? (aren’t = are not)
B: There’s one a mile down the road. (There’s = There is)
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Rules for using semicolons and colons in English
Using semicolons and colons is not usually essential, but they can bring a bit more depth to your writing.
Semicolon use in English
Semicolons can be used to connect two independent clauses and form compound sentences. A semicolon can show contrast between two points or signal a cause-and-effect relationship.
I get a lot more work done in the mornings; my afternoons are far less productive. (Contrasting two ideas)
My feet hurt so much after the long walk; I can barely make it up the stairs.
(Cause-effect relationship)
Note how the word after the semicolon is not capitalized.
How to use colons effectively
We can use a colon to introduce an example, an explanation, or a summary of what was previously stated. This often adds emphasis or draws attention to what comes after the colon.
There is only one person who deserves the promotion: Sheila.
We’re not yet prepared for the move: we’re waiting for the house to be sold.
You can also use a colon instead of a comma to introduce a quote:
Before going to college, my mother said something that I’ll never forget: “I am always here for you, no matter what.”
In certain cases, colons can be effective when introducing a list:
There are three important documents in American history: these are the American Constitution, the Declaration of Independence and the Bill of Rights.
We cannot finalize the event details until we do the following: get a full list of expected attendees, book the event location and decide on a final itinerary for the day.
Colons also come in handy when you want to introduce a bulleted list, and they are essential when writing the time.
Note that the first letter after a colon does not have to be capitalized, although some people capitalize it if it introduces an independent clause.
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AUTHOR
Angela Martinez
Newlanguages