Derivational and Inflectional Morpheme Hello again. Today I want to explain about derivational and inflectional morpheme, it's the one of morphology study. Morphology deals with the structure of words or the study of the structure of words. So, it's relate to vocabulary building. The smallest unit of English language called morpheme. Morpheme is the central of all vocabulary building. There are lots of way to build a word and maybe I will write about them later, but lets focus on the most common way that lexical use, that is derivational and inflectional. 1. Morpheme Morpheme is the smallest unit of English. There are 2 kind of morphemes, there are free morpheme and bound morpheme. Free morpheme is the morpheme that can stand by itself, or on the other words, it ...