This document discusses word forms and parts of speech in English. It provides examples of how knowledge of word forms can help English learners by building vocabulary and understanding complex sentences. It also discusses how word forms are useful for writing, paraphrasing and summarizing. The document then defines and provides examples of the eight common parts of speech in English. It concludes by emphasizing the importance of paying attention to word order and parts of speech when learning and provides tips for improving use of word forms.