Joking aside, punctuation is a serious matter. It is the tool that allows us to organize our thoughts and make it easier to review and share our ideas. There are several punctuation marks in English grammar, and a lot of rules to remember, for instance that at least one of them has to appear in every sentence. But how do we choose the right one, and how do we know if you're using it correctly? The standard English punctuation is as follows: period, comma, apostrophe, quotation, question, excl