English Grammar Rules - Learn When to Use an Apostrophe (2024)

How to use Apostrophes Correctly

Apostrophes are tiny, but they can cause big problems when they are used incorrectly. This basic guide is designed to help you learn how & when to use an apostrophe - the right way.

What is an Apostrophe?

We use the apostrophe to transform various words into plurals, contractions, and possessive forms. Without apostrophes, the English language would seem even more confusing. In a nutshell: there is logic

When to Use Apostrophes with Plural Forms

To make it is easier to remember when to use an apostrophe, keep in mind that most plurals do not contain apostrophes.

  • She wrote several novels during the 1990s.
  • There are twenty PhDs on staff.
  • My friends and I have similar IQs.

It is possible adding an apostrophe to single letters or digits, as in these examples:

  • There is 1 m, 4 i's, 4 s's and 2 p's in 'Mississippi'.
  • There are two 7's in 747.

Creating Contracted Verbs with Apostrophes

Contracted verbs are single words that have been formed from a subject and a verb. While contracted verbs might not always be acceptable for use in academic prose or in business writing, they can be extremely useful for personal communication and many other forms of writing. A few apostrophe examples below:

  • I am – I’m: “I’m planning to write a book someday.”
  • You are – You’re: “You’re going to have a lot of fun with your new puppy.”
  • She is – She’s: “She’s always on time.”
  • It is – It’s: “I can’t believe it’s snowing again.”
  • Do not – Don’t: “I don’t like anchovies.”
  • He would – He’d: “He’d like to go fishing in Alaska.”
  • Let us – Let’s: “Let’s start saving more money each month.”
  • She would have – She would’ve: “If she would’ve paid attention in class, she would have passed.”
  • Who is – Who’s: “Who’s there?”
  • They had – They’d: “They weren’t hungry, because they’d already eaten.”

These are just some of the most common contracted verbs. Once you start looking for them, you’ll notice that there are many others. If you are taking a writing class, be sure to ask your instructor about his or her stance on using contractions before using them in work that will be graded.

The Carolers’ Carols and Shelly’s Shells: Using Apostrophes to Indicate Possession

Possessives might seem tricky, but memorizing three simple rules will prevent you from ever making a mistake when determining where to place the apostrophe.

  • When using a singular noun, the apostrophe is used before the s. For example: “The squirrel’s nuts were stashed in a hollow tree.”
  • When using a plural noun, the apostrophe goes after the s. For example: “The squirrels’ nuts were hidden in several hollow trees throughout the forest.”
  • When using a word that is pluralized without an s, add an s to the end of the word and place the apostrophe in front of it. For example: “Men’s feet are generally larger than women’s.”

Apostrophe Catastrophes: When Not to Use Apostrophes

While there are many ways in which apostrophes can be misused, some are much more common than others. Some examples follow.

  • Incorrect: “My brother has two son’s.” Correct: “My brother has two sons.”
  • Incorrect: “Big wildcat’s roam freely.” Correct: “Big wildcats roam freely.”

In the first two examples, we’re discussing two or more “sons” and “wildcats” rather than items the sons or wildcats possess.

  • Incorrect: “The dog licked it’s chops.” Correct: “The dog licked its chops.”

In this example, we are discussing the dog licking its own chops. If you deconstruct the incorrect sentence, you’ll see that it reads “the dog licked it is chops,” which makes no sense.These are just a few examples of common mistakes. Check your work frequently to be certain that you’re not making similar errors. With practice, you will soon find it simple to use apostrophes appropriately.

English Grammar Rules - Learn When to Use an Apostrophe (2024)

FAQs

English Grammar Rules - Learn When to Use an Apostrophe? ›

Rule to Remember

How do you know when to use an apostrophe? ›

The apostrophe has three uses: 1) to form possessive nouns; 2) to show the omission of letters; and 3) to indicate plurals of letters, numbers, and symbols. ​Do not ​use apostrophes to form possessive ​pronouns ​(i.e. ​his​/​her ​computer) or ​noun ​plurals that are not possessives.

What are the three rules for apostrophes? ›

There are a few exceptions and unique situations with regards to apostrophe use, but the times that they are used are divided into three categories:
  • To show possession (singular or plural)
  • To replace omitted letters in a contraction of words.
  • To show plural of certain numbers and single letters.

What are the 5 uses of apostrophe? ›

Table of Contents
  • Use of an Apostrophe to Show Possession.
  • Use of an Apostrophe to Form Contractions.
  • Use of an Apostrophe to Indicate Missing Letters and Numbers.
  • Use of Apostrophe with Compound Nouns or Hyphenated Nouns to Show Possession.
  • Use of Apostrophes in Literature.

How do you know if a sentence needs an apostrophe? ›

To assess whether you need an apostrophe or not, re-read the sentence to see if you can expand the shortened contraction words by filling in the missing letters. Place an apostrophe where letters are missing.

How do you memorize the apostrophe rule? ›

How To Use an Apostrophe for Possession
  1. Use Apostrophe + “S” With Nouns That Don't End in “S”
  2. Only Use an Apostrophe With Plural Nouns That End in “S”
  3. Use an Apostrophe With Singular Nouns That End in “S” (Sometimes)
  4. Use an Apostrophe When Two Nouns Own Something.
  5. Use an Apostrophe To Create Contractions.

What is the most common mistake made using an apostrophe? ›

One of the most common mistakes that people make when it comes to apostrophes is using them in plurals ending in an 's'. For example, we are open Monday's to Friday's. In order to pluralise a regular noun all you usually need is to add an 's'.

What is the golden rule of apostrophe? ›

Guidelines for Using Apostrophes Correctly: Use an apostrophe to indicate possession (e.g. “John's bike”). Use an apostrophe and “s” to indicate possession with singular nouns (e.g. “The dog's tail”). Use an apostrophe after the “s” for plural nouns that end in “s” to indicate possession (e.g. “The girls' room”).

When not to use an apostrophe? ›

Do not use an apostrophe in the possessive pronouns whose, ours, yours, his, hers, its, or theirs. Do not use an apostrophe in nouns that are plural but not possessive, such as CDs, 1000s, or 1960s. Do not use an apostrophe in verbs. Apostrophes sometimes show up in verbs that end in -s, such as marks, sees, or finds.

How do you teach apostrophes in a fun way? ›

Write a list of phrases on the board that can be changed into contractions. Set a timer for two or three minutes, and have your students rewrite the phrases into one word answers with apostrophes. Challenge them to beat the clock!

What are the 10 examples of apostrophes? ›

Examples
  • It's a nice day outside. ( contraction)
  • The cat is dirty. Its fur is matted. ( possession)
  • You're not supposed to be here. ( contraction)
  • This is your book. ( possession)
  • Who's at the door? ( contraction)
  • Whose shoes are these? ( possession)
  • They're not here yet. ( contraction)
  • Their car is red. ( possession)

What are the five steps for using the apostrophe correctly? ›

  1. Five Steps in Using the Apostrophe Correctly.
  2. Look for possessive construction. Usually two nouns appear together. The first.
  3. Reverse the nouns using a prepositional phrase. Examine the ownership word.
  4. It the ownership word does NOT end in an "s" sound, add an apostrophe and.

When to use s vs s's? ›

Forming Possessives of Nouns
  1. add 's to the plural forms that do not end in -s: the children's game. ...
  2. add ' to the end of plural nouns that end in -s: two cats' toys. ...
  3. add 's to the end of compound words: my brother-in-law's money.
  4. add 's to the last noun to show joint possession of an object: Todd and Anne's apartment.

What two words make won't? ›

When we say won't, we are actually saying will not. The form with the apostrophe is a contraction, like “don't” and “can't.” We owe the “o” in won't to a sixteenth-century form of the word: wonnot.

When to correctly use an apostrophe? ›

Rule to Remember

The apostrophe is used to indicate possessive case, contractions, and omitted letters. The apostrophe is not strictly a punctuation mark, but more a part of a word to indicate possessive case, contractions, or omitted letters.

What words don't need an apostrophe? ›

Possessive pronouns, such as yours, hers, its, and ours, take no apostrophe. Example: The decision is yours.

What are the 3 examples of apostrophe? ›

A few apostrophe examples below:
  • I am – I'm: “I'm planning to write a book someday.”
  • You are – You're: “You're going to have a lot of fun with your new puppy.”
  • She is – She's: “She's always on time.”
  • It is – It's: “I can't believe it's snowing again.”
  • Do not – Don't: “I don't like anchovies.”

Which is correct the Smiths or the Smith's? ›

The Smiths.” The apostrophe (typically) indicates possession. Adding an s without an apostrophe indicates a plural. If you want to say something belongs to the Smith family as a group, you write “the Smiths'.” “I spent the day at the Smiths' swimming pool.”

Is it Chris's or Chris? ›

The spelling Chris's, with an additional S after the apostrophe, is a more common way to write the possessive form of Chris. Most style guides, such as the Chicago Manual of Style, recommend that you use an apostrophe and an S to create the possessive form of a singular noun.

When would you not use an apostrophe? ›

Do not use an apostrophe in the possessive pronouns whose, ours, yours, his, hers, its, or theirs. Do not use an apostrophe in nouns that are plural but not possessive, such as CDs, 1000s, or 1960s. Do not use an apostrophe in verbs. Apostrophes sometimes show up in verbs that end in -s, such as marks, sees, or finds.

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