[Course 1 Lesson 1]
It doesn't matter how amazing your Japanese skill level increases the concepts about Japanese sentence structure taught in this and the next lesson are going to lay the foundation for all future Japanese sentence creation. Creating simple Japanese sentences will never not be an unneeded skill.
5 Japanese Courses on http://www.YesJapan.com based on the Japanese From Zero! (http://yesj.us/I) book series written by George Trombley and Yukari Takenaka