The regular indirect quotation forms are pretty long so there are also contracted indirect quotation forms. These forms are used often in conversations.
Quotation is an important part of any language grammar and thus also of Korean grammar. Without knowing how to properly quote someone in Korean you will severely limit your conversational skills. You might not notice, but in conversations, we cite a lot. We cite people, books, TV shows, …
However, in Korean citing others is quite difficult and you will need to learn a lot of different quotation forms to express yourself. If you are a beginner, it is best you start off simple and focus on the basic forms: direct and indirect quotation, along with the contracted forms of indirect quotation. Keep in mind that the latter is only used in everyday conversations and the long form is typically used in more formal settings.
Later on, you will learn more specific forms of quotation which have a far more limited scope of use. Some of the forms you will use to repeat what someone has said to show you are actively listening, while others you will use to ask for confirmation or clarification on what they’ve just heard.
In the end, you will have to master forms such as -다고 하던데, -다면서요, -보고, etc.
Direct quotation is quoting someone word-for-word while using quotation marks. In Korean grammar, direct quotation is the simplest form of quotation.
Indirect quotation is another way to quote someone, but without having to use quotation marks. At first, this Korean grammar topic might seem overwhelming.