This document discusses adverbs of frequency, which are used to describe how often an action occurs. It lists common adverbs of frequency like always, usually, and sometimes. It also provides other expressions that can be used to indicate frequency, such as "once in a while", "every now and again", and "from time to time". The document explains where adverbs of frequency are positioned in sentences and discusses negative forms. It aims to help readers properly use adverbs of frequency to describe repeated or routine activities.