The more you read, the better you will be at recognizing which punctuation marks in a piece of literature helped you understand the writing. Not only should you read what you enjoy, such as novels or magazines, but you should read books about grammar. Novels and such will help you recognize the art of using punctuation marks, but books targeted to educate about its use will teach you the technical side. You must first grasp the technicalities before you can use punctuation marks to create beautiful writing.
Each punctuation mark has a role in clarifying the meaning of a piece of text. Get to know each mark inside and out. Understand each of its roles and insert it in the text wherever appropriate. Practice with one punctuation mark for a while before moving on to the next. Challenge yourself with longer sentences and paragraphs. Punctuation can guide the artistic flow of your writing, or it can be a necessary feature for efficient communication.
Grammar can sometimes be difficult to teach. That means the way to perfect your grammar is through frequent individual practice. Remember that the more clearly you can communicate your idea to the reader, the better your writing is. This is where grammar plays a role. If the sentence is more easy to understand with a comma inserted in a particular space, then that comma should be put there. The more frequently you write, the better you get at putting yourself in the readers' shoes and at knowing what it takes to communicate your message.
Learning English grammar can be particularly difficult for those whose first language isn't English, and this isn't because of the obvious communication differences between the two languages. Instead, difficulty can stem from nuances in English. For example, words that end in "y" can be changed to "ies" when made plural. This is an issue identified by Georgia State University.