In this chapter we'll discuss good and bad manners, cultural practices of social behavior and customs.
The link below is for grammar notes on the Imperfect Subjunctive:
https://connected.mcgraw-hill.com/c2j/resourceLibrary.do?facet=GROUP%7cB&bookId=1Z51E8DRMV1NY2VJ56E1DB9PH4&libraryId=41JWYVTZK7STZJSMKFOFZSJ6WO&mode=BROWSE