| A | B |
|---|
| Comma before coordinating conjunction joining two complete sentences | Clarie saw two of her friends in the grandstand, so she went to sit with them. |
| commas between adjectives | The recording star has a large, devoted fan club. |
| commas between adjectives | Dad has several old, valuable stamps in his collection. |
| commas in a series | She jogged down the road, through the park, and across the field. |
| omission of commas in page numbers | The passage we are discussing is on page 1451. |
| commas in an address | Mail this letter to Brian Johnson, 110 Merton Street, Fairfield, Connecticut 06430. |
| commas in a salutation | My dear Nate, |
| commas in dates | My grandfather retired on December 31, 1984. |
| commas in direct quotations | "I am eager," said Maya, "to meet the new exchange student." |
| commas with nonessential and essential expressions | The police, keeping well out of sight, followed the suspect for two miles. |
| commas with direct address | I am sure that our team will win the game, Melvin. |
| commas with direct address | Wait, Rob and Maria, until the elevator doors open. |
| commas with parenthetical expressions | Their garden, however, was untouched by the storm. |
