An apostrophe is a punctuation mark used to indicate possession or to form contractions.
Here are some general rules for when to use an apostrophe:
To indicate possession: Use an apostrophe to show that something belongs to someone or something else. For example, "the cat's tail" indicates that the tail belongs to the cat.
To form contractions: Use an apostrophe to indicate that two words have been contracted into one. For example, "can't" is a contraction of "cannot".
To show the omission of letters or numbers: Use an apostrophe to show that letters or numbers have been omitted. For example, "don't" is a contraction of "do not".
Here are some general rules for when NOT to use an apostrophe:
Plurals: Do not use an apostrophe to form plurals. For example, "I have two cats" does not require an apostrophe.
Possessive pronouns: Do not use an apostrophe with possessive pronouns like "yours", "ours", "theirs", "its", or "hers". For example, "The book is hers" does not require an apostrophe.
Contractions with "its": Do not use an apostrophe to form the contraction "its". For example, "The cat licked its paw" does not require an apostrophe
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