The document discusses various ways to express time frequencies in English, including daily, weekly, monthly, annually, as well as more specific expressions like every day, once a week, twice a month. It provides examples of using these time expressions to talk about daily routines such as eating lunch every day, brushing teeth three times a day, and taking classes on certain weekday mornings or weekends. The document also introduces adverbs of frequency like always, usually, frequently, sometimes, rarely, hardly ever, and never to quantify how often certain activities are done.