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Commas. Commas to Set Off Explanatory Words & Appositives Commas with Nonrestrictive Phrases & Clauses. Write Source. Commas to Set off Explanatory Words & Appositives. 612.2: Commas are used to enclose an explanatory word or phrase.
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Commas Commas to Set Off Explanatory Words & Appositives Commas with Nonrestrictive Phrases & Clauses Write Source
Commas to Set off Explanatory Words & Appositives • 612.2: Commas are used to enclose an explanatory word or phrase. • Ex. The Dixie Chicks, a crossover musical group, attracts both country and pop music fans. • 610.1: A specific kind of explanatory word of phrase called an appositive identifies or renames a preceding noun or pronoun. • Ex. This group has two backup singers to support the lead vocalist, Natalie Maines.
Commas with Nonrestrictive Phrases & Clauses • 612.2 Nonrestrictive phrases and clauses, sometimes called unnecessary or nonessential word groups, can be removed from a sentence without changing its basic meaning. • Always place commas around nonrestrictive phrases and clauses. • Nonrestrictive example: Auroras, which are displays of light in the sky, can be seen only at night. • Restrictive example: Lights that dance in the night sky are called auroras.
Commas: That and Which • Use that to introduce restrictive (necessary) clauses. • The treadmill that monitors heart rate is the one that you must use. (no commas) • Use which to introduce nonrestrictive (unnecessary) clauses. • The treadmill, which we got last year, is required for your program. (commas)
Commas: Other Uses • 614.1 To Set off Dates • Items in a date: On September 30, 1997, my… • No comma needed for just a month and year: May 2006 • Full date in a sentence: On June 7, 1924, my… • 614.2 To Set off Items in Addresses • Mail the box to Friends of Wildlife, Box 402, Spokane, Washington 20077. • After the state when a city and state are in the middle of the sentence: They are in Juneau, Alaska, for the week. • 614.3 In Numbers • Separate hundreds, thousands, millions, and so on: 7,645,268 • 614.4 To Enclose Titles or Initials • Use commas to enclose a title or initials and names that follow a surname (last name) LetitiaO’Reilly, M.D., is our doctor.