The 1st comma rule:
Use commas to separate words
and word groups in a simple series of 3 or more times
The 2nd comma rule:
Use a comma to separate independent clauses when they are joined by the following conjunctions: and, or, for, nor, so, but, and yet.
The 3rd comma rule:
Use a comma to separate a dependent clause from an independent clause.
The 4th comma rule:
Use a comma to separate any word or phrase from the rest of the sentence that is not essential to the rest of the sentence
The 5th comma rule:
Use a comma to separate a quotation from the rest of the sentence.
The 6th comma rule:
Use a comma to separate an introductory element from the rest of the sentence.
The 7th comma rule:
Use a comma to separate the name of a city from a country or state
The 8th comma rule:
Use a comma to separate the day of the week, the day of the month, and the year
