There are many different rules that deal with the terrible and often frustrating apostrophe, which is indeed the overall reason for its difficulty. It is unlike most of our other punctuation tool in that it is almost certainly one of the most versatile, yet it indubitably requires skill and excellent memory. I am, however, aware that some of you may already know most of the rules of the apostrophe, though I am also equally aware that being prudent and taking a casual glance just to make sure never hurt anyone.
With that said, let me introduce the two greatest rules of the apostrophe in an easy-to-learn and interactive tutorial.
The foremost and perhaps most recognizable use of the apostrophe is the use of it in a contraction. Usually a subject and a verb are meshed together