An apostrophe after an s creates either a possessive form (showing ownership) or a contraction (combining words). Possessive apostrophes attach to nouns, while contractions replace omitted letters in verbs.
Apostrophes modify words to show possession or combine them into contractions. For possessives, the apostrophe typically follows the s. Contractions use apostrophes to replace omitted letters, often combining subjects and verbs like "he is" becoming "he's."
| Type | Example | Usage |
|---|---|---|
| Possessive singular nouns | the cat's toy | Shows ownership by one subject |
| Possessive plural nouns | the cats' toys | Shows ownership by multiple subjects |
| Contractions | he's happy | Combines "he is" into one word |
Many confuse apostrophes for plurals or use them incorrectly in contractions. The phrase "he is" becomes "he's," not "hes." Similarly, "its" (possessive) differs from "it's" (contraction of "it is").
Incorrect: "The dog's are playing." Correct: "The dogs are playing."
Names ending in s often add an apostrophe and another s for clarity: "Charles's car." Some style guides allow just an apostrophe, but consistency matters most. Irregular plurals like "children's" follow standard possessive rules.
I once proofread a document where every contraction was missing apostrophes. Adding them improved readability and adherence to standard conventions.
Apostrophes clarify ownership and combine words. Use them in possessives (e.g., "the boss's office") and contractions (e.g., "she's leaving"). Avoid using them for simple plurals unless the word already ends in s (e.g., "the 1980s").
Understanding apostrophe usage prevents common errors and improves communication clarity. Whether showing possession or creating contractions, apostrophes play a important role in English grammar.