The document discusses adverbs of frequency and their use in describing study habits. It provides examples of common adverbs of frequency like always, usually, often, sometimes, rarely and never. It explains that these adverbs come after verbs like "be" and usually before other verbs when describing how frequently an action occurs. The document also contains examples of questions using adverbs of frequency or "how often" to inquire about someone's study habits and frequencies of different actions. It encourages practicing conversations with a partner using these structures.