This document discusses the uses of the words "too" and "enough". It explains that "too" is used to describe having more than necessary of something and having a negative effect, while "enough" describes having or not having the right amount of something. Some examples are given of how each word can be used, such as "It's too cold to work" or "John isn't patient enough to be a teacher". The document also provides examples of how these words can be used with adjectives, adverbs, nouns and different structures like "too + much/little" or "not + enough".