This document discusses the different parts of speech in English language. It defines vowels as a, e, i, o, u and consonants as the remaining letters. Y and w are identified as semi-vowels. The articles a, an and the are explained based on the sounds that follow them. Finally, the eight main parts of speech - noun, pronoun, verb, adverb, adjective, preposition, conjunction and interjection - are listed along with an example of a noun.