Apostrophes are used in English in two main ways: to show possession and to form contractions. Here's how to use them for both singular and plural nouns, as well as for contractions:
Showing Possession
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Singular Nouns:
- For singular nouns, add an apostrophe followed by the letter "s" (’s).
- Example:
- The book of the teacher → The teacher’s book
- The car of John → John’s car
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Plural Nouns:
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For plural nouns that already end in "s", just add an apostrophe after the "s".
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Example:
- The books of the teachers → The teachers’ books
- The houses of the cats → The cats’ houses
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For plural nouns that do not end in "s", add an apostrophe followed by "s" (’s) just like singular nouns.
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Example:
- The children of the family → The family’s children
- The men of the group → The group’s men
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Forming Contractions
A contraction combines two words into one by omitting certain letters and replacing them with an apostrophe.
- Example of Common Contractions:
- Is not becomes isn't
- You are becomes you're
- They will becomes they'll
- I have becomes I've
Summary
- Use ’s for singular nouns to show possession.
- Use just an apostrophe (’) for plural nouns ending in "s".
- Use ’s for plural nouns not ending in "s".
- Use apostrophes to indicate missing letters in contractions.
Following these rules will help ensure proper use of apostrophes in your writing.