An adverb can be added to a verb to modify its
meaning. Usually, an adverb tells you when, where, how, in what manner, or to
what extent and action is performed. Many adverbs end in ly — particularly
those that are used to express how an action is performed. Although many
adverbs end ly, lots do not, e.g., fast, never, well, very, most, least, more,
less, now, far, and there.
Here are some examples:
When: He ran yesterday.
Where: He ran here.
How: He ran quickly.
In what manner: He ran barefoot.
To what extent: He ran fastest.
In these examples, the adverbs are all just one word,
but they can be made up of more than one word. (i.e. adverbial phrases and
Adverbs are also used to modify adjectives and other
adverbs. For example: