Common and Proper Nouns
Singular and Plural Nouns
Singular and Plural Possessive Nouns
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Singular and plural possessive noun
Add an apostrophe and an S to a singular noun to make it a possessive noun.
Add an apostrophe to a plural noun that ends in S to make it a possessive noun.
king's palace(singular possessive)and the sharks' teeth(plural possessive)
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