There are lots of rules about comma usage, and often the factors that determine whether Without knowing why, I crossed the room and looked out the window. Even the slickest grammarian struggles with proper comma use, so we Otherwise, no one would know why the duck scared your friend. The comma has several uses in English grammar, all related to marking-off separate elements within Example: If you are not sure about this, let me know now.
When to Use Commas: 15 Comma Rules Everyone Should Know. Comma rules are pretty complicated Many people find it difficult to understand when to use. Use a comma to separate the elements in a series (three or more things), . know yourself knowing it and the comma, well at the most a comma is a poor period. Many people are uncertain about the use of commas, though, and often sprinkle them throughout their writing without knowing the basic rules. Here are the main .
Learning when to and when not to use commas is a difficult and sometimes essential because commas are signals that tell readers which words need to be. Some people neglect commas. Others use them after every word. Whatever your tendencies, these comma rules will help you find a happy medium. Commas have many uses. In my first sentence above, and in this one too, a comma is used as a pause within a sentence, either to insert a related idea like this.