Everyone should know how to use commas correctly. Teachers, mathematicians, tennis players, loggers, painters, and musicians should all learn how to use commas correctly. People who use commas correctly tend to have better voices, more interesting lives, higher paid jobs, and more loyal and better-looking friends than those people who do not use commas correctly. People who suffer from forgetting to punctuate the end of sentences, poor comma use, or lack of spelling skills should contact their nearest English teacher immediately.
Notice the sentences above have series of words or phrases that are separated by commas. The free-range-comma-rule number four is use commas to separate a series of three or more words or phrases. If it’s a series of only two words or phrases, you don’t need a comma. For example, the sentence He climbed the tree and shouted with joy does not need a comma. However, the sentence He climbed the tree, looked up, and shouted with joy does need commas.
Use the words “and” or “or” to let the reader know that they are reading the last word or phrase in the series. Put a comma in front of the words “and” or “or” when you do this. Putting a comma in front these words helps the reader to not confuse an “and” that is part of a phrase with an “and” that shows the end of a series.
The exception to the series-of-three-or-more-rule is when you have a series of adjectives. Use commas to separate two or more adjectives that describe the same noun. An example of this is in the sentence The fat, brown chicken laid a small, green egg. Be sure not to confuse an adverb for an adjective. An adverb is a word that describes a verb or an adjective. For instance, the sentence He mowed the light green grass does not need a comma because light is describing green, which is an adjective. The thin, green grass does need a comma.