English 1 (Accelerated)

  • Capitals
  •  End Marks
  •  Semicolons
  •  Italics
  •  Apostrophes
  •  Other Marks

Chapter 23:

Apostrophes

Rules:

  • 23a. To form the possessive case of a singular noun, add an apostrophe and an s.
  • 23b. To form the possessive case of a plural noun ending in s, add only the apostrophe.
  • 23c. Possessive personal pronouns do not require an apostrophe.
  • 23d. Indefinite pronouns in the possessive case require an apostrophe and an s.
  • 23e. In compound words, names of organizations and business firms, and words showing joint possession, only the last word is possessive in form.
  • 23f. When two or more persons possess something individually, each of their names is possessive in form.
  • 23g. Use an apostrophe to show where letters or numbers have been omitted in a contraction.
  • 23h. Use the apostrophe and s to form the plural of letters, numbers, signs, and of words referred to as words.

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