Are you reading this article carefully? Are you reading it quickly? Perhaps you are reading it slowly. Someone somewhere might be reading it nervously. Do you read the English Language pages in Young Post frequently? I hope you do.
An adverb (carefully / quickly / slowly / nervously / frequently) is a word that tells us more about a verb. A verb, as you know, is a doing word, so an adverb tells us how things are done. We use adverbs all the time in written and spoken English because saying how something is done is much more interesting than simply saying that it is done without any further information.
Think of all the different ways that someone might do something and your head will fill up with useful adverbs. How does Josh speak? He speaks loudly. How does Ben drive? He drives dangerously. How does Betty work? She works quickly. How does Madonna sing? She sings badly. (Oh dear!) There you are. A list of popular adverbs is very easy to build up.
The main use of adverbs is, as we have seen, to say how something is done. But adverbs also tell us when, where, why and under what conditions an action happens.
Timmy arrives in Hong Kong tomorrow. (When)
Flu is breaking out everywhere. (Where)
Why is he coughing?