ADVERBS

 Adverbs describe verbs, adjectives, and other adverbs. They describe how, how often, where, when, and to what degree something happens.

FOR EXAMPLE:

                  1) The turtle is crawling through the grass very slowly.
       ("Slowly" describes how the turtle crawls. "Crawl" is a verb.)

                  2)She waters the plant frequently. 
       ("frequently" describes how often she waters the plant.

                3) He's usually late to work.
        ("Usually" is an adverb of frequency that describes an adjective--'             late')