| A | B |
|---|
| space once | between words |
| space once | after a comma |
| space once | after a semicolon |
| space twice | after any punctuation mark at the end of a sentence |
| space twice | after a colon except when expressing time or a ratio |
| Do not space | following a period in an abbreviation |
| Do not space | between quotation marks and the quoted material |
| Do not space | before and after a hyphen |
| Do not space | before and after an apostrophe |
| space twice | after a question mark |
| space twice | after an exclamation point |
| made by typing two hyphens | dash |
