This document discusses how prefixes and suffixes can be added to words to change their part of speech or meaning. It provides examples like "in-" being a negative prefix and "-en" being a verb suffix. It encourages studying new words and provides more examples of suffixes that can be added to nouns and adjectives like "-ness", "-ity", "-ous", "-able", "-al", and "-y". The document concludes with sentences for the reader to fill in using the new words formed from the examples.