This document provides an overview of the key parts of speech in English grammar: verbs, nouns, pronouns, adjectives, adverbs, prepositions, conjunctions, and interjections. It emphasizes that understanding parts of speech is fundamental to constructing English knowledge and success in English depends on comprehending these basics. The document then focuses on specifically defining verbs as words that describe actions, events, or states of being; nouns as names of people, places, things, or concepts; and adjectives as words that modify nouns by describing, identifying, or quantifying them.