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, The Comma
A zesty sidedish that works well to set off almost any meal.  
 
Use a comma:  
  
  • After introductory phrases
After any word, phrase, or clause that introduces a thought or idea:  
Afterwards, we went home. Later that day, the truck appeared.  
  
  • With transitional words and phrases
Transitional words and phrases help make smooth connections between ideas in sentences. Some examples of transitionals:  
in fact, in addition, therefore, however, for example  
The flood leveled most of the town; however, the town hall remained unharmed.  
  
  • Tag Questions
A tag question is a question tagged onto a statement:  
You're the culprit, aren't you 
  
  • In lists
Commas appear between elements (words, phrases, and clauses) arranged in lists:  
We ate dishes of ice-cream, Jell-o, apple pie, chocolate pudding, and sherbet.  
  
  • In between two independent clauses joined with a conjunction
When two independent clauses are joined with a coordination conjunction use a comma before the conjunction:  
I went there, and he came here.  
Rice is a good source of carbohydrates, but too much rice can turn into fat.  

 

CHEF'S NOTES:  An independent clause contains a subject and a verb. It doesn't need any other words to help create a complete thought.

  • Between two coordinating adjectives
Coordinating adjectives can be joined by the word and, for example, green and leafy.  

 

When two or more adjectives modify the same noun, the word and can be replaced by a comma:  

 

The tree had green, leafy branches.  

 

(If there's more than two adjectives, refer to the rules for using commas in lists).  
  
  • Commas for quoted words

Whenever a direct quote appears, a comma appears:  

He said, "I missed the bus again."  
Anthony said, "I'll drive you there."  
Note: Indirect quotations do not take commas:  
He said that he had missed the bus.  
  
  
 CHEF'S NOTES:  Notice that the comma appears after the word "said".  However, indirect quotations, that is, quotations that are not someone's exact words, do not take a comma. Look above and compare the indirect quote with the direct quote. Here's a clue: most indirect quotes have the word "that" following the word "said".  
  
  • Commas with Letters
Commas appear in the opening address and in the complimentary close of informal letters:  
Dear Betty,  
Sincerely,  
  
  • Commas with nonrestrictive phrases and clauses
A nonrestrictive phrase or clause is a phrase of clause that is not essential to the meaning of the sentence. Therefore, if it were eliminated the overall meaning of the sentence would not change:  

 

The fly, which came in through the open window, landed on the fruit.  
  
  • Commas in Numbers and Dates -
Commas appear after every 3rd digit in long numbers except in the year of a date. In dates, the comma appears after the day:  
July 4, 1992  
Jan. 8, 1971  
$1, 450, 200  
  
  • Places -
We all know that when addressing an envelope, a comma comes between the city and state:  

 

Brooklyn, New York  

 

This same rule applies even when the city and state appear in sentences:  
Binghamton, New York is close to Reading, Pennsylvania.  
  
  • Names -
When a name is ordered with the last name appearing before the first name, a comma is placed between them: 

 

Smith, Emily ; Gonzales, Vincent  

 

When a person has various educational degrees or titles listed after their name, commas appear between the various degrees:  

 

Mario Baritta, Ph.D., M.D., P.C.  

 

When someone is directly addressed, set the name off with commas.  
Cheryl, are you listening?  
Thank you, Robert, for helping me.  
  
  • For Appositives
An appositive is a word or phrase that re-defines or further describes the word or phrase before it.  

 

Jonathan, a notable lawyer, was present at the conference.  
Notice that the re-defining phrase is set off by commas.