When To Use And When To Use '

Punctuation marks, those tiny yet powerful symbols, play a crucial role in shaping the meaning and clarity of our written communication. Among them, the apostrophe (') is a versatile mark with a unique set of rules and applications. In this comprehensive guide, we will delve into the world of apostrophes, exploring their proper usage, common pitfalls to avoid, and practical examples to ensure your writing shines with grammatical excellence.
Understanding the Apostrophe: Its Purpose and Function

The apostrophe, a single mark, serves multiple functions in the English language. Its primary roles include:
- Contractions: Apostrophes are used to combine two words into a shorter form, known as a contraction. For instance, "do not" becomes "don't," and "it is" becomes "it's."
- Possessives: When indicating ownership or possession, an apostrophe is often added after the noun to show that something belongs to or is associated with that noun. For example, "the cat's meow" means the meow belonging to the cat.
- Plural Possessives: In the case of plural nouns that end in "s," the apostrophe is placed after the "s" to indicate possession. For example, "the boys' toys" refers to the toys belonging to the boys.
When to Use the Apostrophe

Understanding when to employ the apostrophe is essential to ensure your writing is clear and error-free. Here are some key situations where an apostrophe is necessary:
Contractions
As mentioned earlier, contractions are formed by combining two words into a shorter form using an apostrophe. Here are some common examples:
- "I'm" for "I am"
- "can't" for "cannot"
- "won't" for "will not"
- "she's" for "she is"
- "it's" for "it is" (note the potential confusion with the possessive form, which we'll discuss later)
When forming contractions, the apostrophe takes the place of the missing letters. It's important to remember that contractions are informal and should be used judiciously in formal writing.
Possessive Nouns
When indicating possession, an apostrophe is typically added after the noun. Here are some examples:
- "The dog's bone" refers to the bone belonging to the dog.
- "John's car" indicates that the car belongs to John.
- "The company's policy" refers to the policy of the company.
It's worth noting that for most singular nouns, the apostrophe is followed by an "s" (e.g., "the girl's doll"). However, for plural nouns that already end in "s," the apostrophe is simply added without an additional "s" (e.g., "the girls' dolls").
Plural Possessives
When dealing with plural nouns that show possession, the rules change slightly. For plural nouns that end in “s,” the apostrophe is placed after the “s” to indicate possession. Here are some examples:
- "The boys' bicycles" refer to the bicycles belonging to the boys.
- "The teachers' lounge" indicates the lounge for the teachers.
- "The artists' studio" refers to the studio of the artists.
Common Pitfalls and Misuses of the Apostrophe
While the apostrophe is a useful tool, it’s not uncommon for writers to misuse or over-apply it. Here are some common mistakes to avoid:
It’s vs. Its
One of the most frequent errors involves the confusion between “it’s” and “its.” “It’s” is a contraction of “it is” or “it has,” while “its” is the possessive form of the pronoun “it.”
- "It's raining outside" (contraction of "it is")
- "The cat chased its tail" (possessive form)
Overusing Apostrophes in Plurals
It’s a common misconception that apostrophes are needed to form plurals. This is not the case. Apostrophes should only be used to indicate possession, not to pluralize nouns.
- Correct: "I bought three apples."
- Incorrect: "I bought three apple's."
Apostrophes with Possessive Pronouns
Possessive pronouns, such as “hers,” “yours,” “theirs,” and “ours,” do not require an apostrophe. Adding an apostrophe to these words is incorrect.
- Correct: "The house is theirs."
- Incorrect: "The house is their's."
Special Cases and Exceptions
Like most rules in grammar, there are exceptions and special cases when it comes to apostrophe usage. Here are a few worth noting:
Joint Possession
When indicating joint possession, the apostrophe is typically added after the last noun. For example:
- "John and Mary's house" refers to the house belonging to both John and Mary.
Non-Living Possessives
In some cases, non-living things or abstract concepts can take on a possessive form. For instance:
- "The city's skyline" refers to the skyline of the city.
- "The company's success" indicates the success of the company.
Irregular Plurals
Certain nouns have irregular plural forms, and the apostrophe is used to indicate possession. For example:
- "The children's toys" (plural of "child")
- "The men's club" (plural of "man")
Practical Examples and Exercises

To further illustrate the proper use of apostrophes, let’s explore some practical examples and engage in a few exercises:
Example Sentences
- “The cat’s meow was loud and clear.”
- “She’s going to the store to buy some apples.”
- “The girls’ basketball team won the championship.”
- “The company’s policy on remote work is flexible.”
Exercise 1: Identify the Correct Apostrophe Usage
Which of the following sentences is correctly written? Explain your choice.
- A. "The cats meow was loud."
- B. "The cat's meow was loud."
Exercise 2: Plural Possessives
Rewrite the following sentence, adding the correct apostrophe to indicate plural possession:
"The boys are playing with their bicycles."
Exercise 3: It’s vs. Its
Determine whether the following sentences are correct or incorrect. If incorrect, rewrite them using the correct form.
- A. "It's tail was wagging excitedly."
- B. "The dog chased its tail."
Conclusion
Mastering the use of apostrophes is an essential skill for effective writing. By understanding the rules and exceptions, you can ensure your writing is clear, concise, and free from grammatical errors. Remember to use apostrophes for contractions, possessive nouns, and plural possessives, and avoid common pitfalls like overusing apostrophes or confusing “it’s” and “its.”
With practice and a keen eye for detail, you'll become a punctuation pro, ensuring your writing shines with grammatical excellence.
When should I use an apostrophe for possessives?
+An apostrophe is used for possessives when indicating ownership or possession. For singular nouns, add ’s (e.g., “the girl’s doll”). For plural nouns ending in “s,” add only an apostrophe (e.g., “the boys’ toys”).
How do I form a contraction with an apostrophe?
+To form a contraction, combine two words into a shorter form using an apostrophe. For example, “do not” becomes “don’t,” and “it is” becomes “it’s.”
What’s the difference between “it’s” and “its”?
+“It’s” is a contraction of “it is” or “it has,” while “its” is the possessive form of the pronoun “it.” “It’s” indicates a statement or action, while “its” shows possession.