adjective /adverb - different usage explanations

An adjective describes a noun. An adverb, however, describes a verb. As simple as that.

If an adverb is regular, you simply add -ly.

I will take a quick look. → I will look quickly.

Of course, there are some exceptions:

consonant + -y easy	consonant + -y easily
ending le + ly possible	ly possibly
ending ic + ly automatic	ically automatically

other exceptions:

good → well,
fast, early, late und hard remain as is

good a good man	well he played well
hard a hard work	hard he worked hard
late a late night	late he came late
early the early bird	early he came early
fast a fast car	fast he drives fast

Beware:

The adverbs lately and hardly exist. However, their meaning is entirely different form the meaning of the adjectives late and hard

lately means: recently, currently; hardly means rarely.

Especially in the case of hardly there could be confusion:

He worked hard. (Er hat hart gearbeitet) vs. He hardly worked. (Er hat kaum gearbeitet)

hardly = rarely	he hardly worked
lately = recently	he has been ill lately

Verbs of sentiment and perception

Verbs of sentiment and perception don't use its adverbial form.

sound good, feel good, smell good, taste good, look good

Adverb describing an adjective

If an adjective relates to an adjectives or adverb and describes it further, it is also put into its adverbial form:

extremely nice, awfully slow, unexpectedly easy, painfully slowly etc.

excercises adjective adverb

adverb - adjectives regular adverb - adjective exceptions