Learn Use Of Punctuation : English Grammar Video These are important part of English Grammar as this. How to Use English Punctuation Correctly. With the dawn of the Internet, the birth of Internet slang, and the growing use of SMS, many of us are starting to forget. You use punctuation marks to structure and organise your writing. Use the pages in this punctuation section to learn how to make your English clearer and The Comma · The Period, Full Stop or Point · The Colon · Hyphens and Dashes. Note that sometimes parentheses and commas can be used interchangeably. You can use it immediately after an error in a quotation commonly a misspelling. By replacing and with a slash, you suggest that there is equal importance in both options listed. A comma should occur after the word immediately preceding a quotation that is being introduced with context or a description. They are complete statements.