The document discusses the Hawaiian conjunction "ku'a". It provides examples of the four types of ku'a: A, I, Ke, and O. Ku'a A is used to connect sentences and phrases until something happens. Examples include "I ate until I was full" and "pull until the rock comes loose". Ku'a I is used with verbs like "will, would, can, could" to indicate purpose or reason. Examples include "I sat in front so that I could hear the teacher" and "do your homework so that you can go to the mall tonight". The document provides exercises to practice using the different ku'a.