Adjectives and Adverbs in English

Adjectives such as beautiful, nice, and red describe nouns.
Adverbs such as quickly, badly, or warmly describe verbs.

This page will explain the differences between them, and show you how to make adverbs from adjectives.

1. Using adjectives and adverbs

Adjective           Adverb               Example
beautiful                                  Ann is beautiful.
                      beautifully           Ann sings beautifully.
warm                                      The room is warm.
                      warmly               Joe smiles warmly.
slow                                       The car is slow.
                       slowly               Ann drives slowly.

2. Making adverbs from adjectives

Adverbs are usually made from adjectives by adding -LY.

These are the rules:

Adjective ending in... (y) Change Y to I and add -LY    

Examples
heavy - heavily
happy - happily
lazy - lazily

[anything else] Just add -LY
warm - warmly
nice - nicely
loud - loudly

There are some important exceptions:
Adjective Adverb
good        well
late        late
(“Lately” means recently. It is not the adverb from “late”.)
early        early
fast        fast
hard        hard
(“Hardly” means not much. It is not the adverb from “hard”.)