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Apostrophes: Grammar Rules For Showing Possession
Rule 1: To form the possessive of a singular noun that does not end in s or an s sound, add an apostrophe plus s to the noun:
Examples: the doctor’s orders, the writer’s desk, Tammy’s car, my sister’s children, her father-in-law’s house
Rule 2: To form the possessive of a singular noun that does end in s or an s sound, add an apostrophe plus s to the noun:
Examples: Jennifer Lopez’s music, the witness’s report, James’s poetry
One exception to this rule is to add only an apostrophe when adding the apostrophe plus s makes the word difficult to pronounce:
Examples: Sophocles’ plays, Mrs. Rogers’ new car
Rule 3: To form the possessive of a plural noun that ends in s or es, add only an apostrophe to the noun:
Examples: the actors’ roles, the writers’ convention, their doctors’ orders, the beaches’ cleanliness
Rule 4: To form the possessive of a plural noun that does not end in s or es, add an apostrophe plus s to the noun:
Examples: her children’s toys, the women’s dressing room
Rule 5: To indicate separate possession, add whichever possessive sign is appropriate (an apostrophe plus s or an apostrophe alone) to the name of each person:
Examples: Bill’s and Tom’s cars (two separate cars: Bill’s car and Tom’s car), James’s and Olivia’s houses (two separate houses: James’s house and Olivia’s house)
Rule 6: To indicate joint possession, add the appropriate possessive sign (an apostrophe plus s or an apostrophe alone) to the final name:
Examples: Mary and John’s house (the house belongs to both Mary and John), Edward and Madeleine’s books (the books belong to both Edward and Madeleine)
One exception to this rule occurs if one of the owners is identified by a pronoun (my, his, her, our, their). In this case, make each name and pronoun possessive:
Example: Erica’s and my project (not Erica and my project); Mark’s and our dinner (not Mark and our dinner); John’s, Edgar’s, Lisa’s, and my party (not John, Edgar, Lisa, and my party)
A note about the possessive pronouns: my, mine, your, yours, his, her, hers, its, our, ours, their, theirs, whose. These pronouns never require apostrophes.
Rule 7: To form the possessive of a singular abbreviation, add an apostrophe plus s.
Examples: the FAA’s ruling, the MD’s diagnosis, USA’s stand
Rule 8: To form the possessive of a plural abbreviation, add an s’.
Examples: the PhDs’ dissertations, the RNs’ orders, the CPAs’ convention
A note about apostrophes in contractions: Whenever a word or phrase is shortened by contraction, remember to place an apostrophe at the point where the letters are omitted.
Examples: don’t (do not), can’t (cannot), rock ‘n’ roll (rock and roll), ma’am (madam)
Apostrophe placement in first and last names, abbreviations, and pronouns shouldn’t give you any trouble if you just follow these simple writing rules. But if you’re not sure, Writer’s Relief proofreaders may be able to help. So when Maria parks her car in Tom and Jane’s driveway, which is next to the Petersons’ house and across the street from Edward’s and Alfred’s apartments, you’ll have no trouble at all conveying that information to your reader!
Hi Linda,
It would be “I left a message on his son John’s answering machine.”
I am doing some transcription work, and although it is primarily verbatim, I still need to correct grammar. Could you help me with this sentence:
I left a message on his son’s, John’s, answering machine.
or
I left a message on his son, John’s answering machine.
Thank you.
If you’re referring to the audience’s collective experience: “The audience’s life experience.”
If you’re referring to individual members of an audience: “The audience’s life experiences.”
The audience’s life experiences? or The audience’s life experience?
(Word)s’ is the possessive for multiple words, while (word)’s is the possessive for one word.
What is the difference between (word)s’ and (word)’s
In that instance, an apostrophe is required.
What if the the possessor appears at the end of the sentence?
Is an apostrophe required?
eg. This bag must be Tims? or Tim’s
Jack’s mother’s cooking. Mother’s showing possession, not a contraction for mother is.
jack mother’s cooking or jack’s mother cooking?
At the Rodriguez’s house.
Hi! In an invite…. would it be the
At the Rodriguez’s house
At the Rodriguezes’ house
At the Rodriguezes house ?
Sorry for the delay. We would recommend Cousins Convention with no apostrophe.
I’m creating shirts for our group of female cousins. We have an annual convention and my question is: Cousin’s Convention, Cousins’ Convention or Cousins Convention. Help is appreciated!
When a sentence is awkward, we would recommend rewriting it to make the possessive clear.
Hey– I wondered what the order would be for possessive apostrophes when there is another name in parenthesis
For example: Where is the client’s (Bill) bicycle? or Where is the client (Bill’s) bicycle?
Hi Olivia,
Dad’s fishing lines. “Dads’ fishing line” would imply multiple dads.
I’m actually struggling with one-
Dad’s fishing lines, or Dads’ fishing lines?
(Dad – singular)
Mrs. Parks’s class.
Mrs. Parks’ class OR Mrs. Parks’s class???
Hi Klaus:
Yes. There would be an apostrophe on both Curley’s and Wife’s in that sentence.
if I’m writing “Curley’s wife’s happiness” does there need to be an apostrophe on both Curley’s and Wife’s?
Hi Pat,
According to the Gregg Reference Manual, to form the possessive of a plural noun, you would add only an apostrophe. So the answer would be Smiths’ in this case.
However, it seems like a word is missing. The Smiths’ “what?” was established in 2017? You might want to consider:
The Smiths’ Cabin
Established 2017
Please help with text for a sign outside of a cabin. I see so many different versions, it is difficult to know which is correct!
The Smith’s
Established 2017
The Smiths’
Established 2017
The Smiths
Established 2017
Thank you for any help that you can provide!
Hi T,
Yes, the word boy’s needs the apostrophe to show possession. Otherwise, it’s the plural and incorrect.
Hello
IN a sentence such as the teacher preferred the girl’s work to the boys. Do you also need t our an apostrophe in the word boys as in boy’s, if it is at the end of the sentence with no noun after it?
Regards