In this chapter, Biber looks at the following four phenomena.  For each one, summarize briefly the actual findings, but also focus on the general principles involved.  In other words, for each phenomenon:

• what are the benefits of using corpora
• what are the methodological challenges, and
• are the data that Biber uses are adequate for the question at hand

Phenomena:

1. Modal verbs (8.2)
2. Register differences (8.3)
3. Gender differences (8.4)
4. Stylistic differences (author) (8.5)

Biber's dimensions