Lesson 176: In this lesson, you will learn how to use ~아/어 봤자 to indicate that some action is pointless or useless. | 
 Lesson 177: In this lesson, you will learn about the structure of a common literary infix: ~오~. That is, a particle that squeezes between words and other grammatical principles. Although this infix is somewhat old-fashioned, it shows up a lot in literature and formal situations. | 
 Lesson 178: In this lesson, you will learn a new take on a familiar particle. Specifically, you will see how ~구요 can replace ~고 given the right situation. | 
 Lesson 179: In this lesson, you will learn about a noun that takes on a complex meaning. Although it’s technically a noun, you can think of it as functioning more like a grammatical principle. In this lesson, you will learn about 마련. | 
 Lesson 180: In this lesson, you will learn about a way to express your inferences using a new grammatical principle.This grammatical principle is similar to 것 같다, which you learned in an earlier lesson.. In this lesson, you will learn about 듯하다. | 
 Lesson 181: In this lesson, you will learn about ~조차, a particle attached to nouns that has a similar function to ~도. We will explore how ~조차 differs from ~도 and how it adds emphasis. | 
 Lesson 182: In this lesson, you’ll learn how to turn certain nouns into adjectives using ~답다, a pattern that adds the qualities of a noun to a description. | 
 Lesson 183: In this lesson, you will learn another way to turn nouns into adjectives. This time, using the addition ~롭다. | 
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