Adverbs are describing words. We use them to modify verbs, adjectives etc. They give us more information about the word they modify such as how, when, where, how often and to what degree. Different types of adverbs include adverbs of manner (slowly), time (yesterday), frequency (often) and degree (very). Adverbs can often be identified by their -ly ending, although this is not always the case (yesterday/always). Adverbs also have comparative and superlative forms.