The document discusses the use of the phrase "there be" to describe places in Portuguese. It provides examples of using "there be" in the present, past, and future tenses to talk about what exists in a school. Some examples include "there are some TVs," "there was a teacher," and "there will be a library." It also covers using "there be" in affirmative and negative forms, as well as interrogative forms like "is there a school near my house?"