This document discusses different types of adverbs that are used to provide information about time or frequency. It describes adverbs that indicate when an action occurred, such as yesterday or tomorrow. It also covers adverbs that indicate how long an action lasted, such as for a year or since 1996. Finally, it examines adverbs that show how often an action occurs, such as often, never, always, and occasionally. Examples are provided to illustrate the typical placement of each type of adverb.