Adverbs of frequency.Versión en línea Adverbs are an important part of a language because they express how an action (a verb) is done. When we want to describe how often the action is done, we need to use adverbs of frequency. But how do you teach this to your students? Read on to find out our top tips and examples! What are Adverbs of Frequency? An adverb of frequency describes how often an action happens. There are six main adverbs of frequency that we use in English: always, usually (or normally), often, sometimes, rarely, and never. por Mauricio Betancur