We have completed the 8 parts of speech in English. Moving forward, we will study other parts of grammar such as regular verbs, contrastive discourse markers, helping verbs, etc. This lesson explains the function of contrastive discourse markers to imply differences. The next lesson will be an elaborated version of this episode. In this lesson, four categories of contrastive markers are explain with exercises and a test. Enjoy the lesson and feel free to ask if you have any questions about English grammar, reading, and writing.