Question

In your own words, explain when a comma is necessary to set apart a subordinate clause and when it is not. Provide a sample sentence to illustrate the rule.

Answer 1

Answer:

Commas are used as a signal to readers that a modifying element is not essential to their understanding of the sentence. Commas must be placed before and after the nonessential element when it appears in the middle of a sentence. For example: The Library of Congress, located in Washington, DC, has one of three original Gutenberg Bibles in its collection.

Explanation: