Introduction to the differences between ...
 
What does the adjective do?


An adjective describes things, people, qualities, situations, etc.

punkt The house is red
punkt The red houses is beautiful
punkt The woman is young
punkt The young woman is clever
punkt The orange is ripe
punkt The ripe orange is sweet
punkt The meeting was successful
punkt The successful meeting was interesting
 
What does the adverb do?


An adverb describes how, where, when something is/was done.

punkt How does the young woman sing?
She sings beautifully
punkt Where did they spend the night?
They spent the night outside
punkt When do they milk the cows?
They milk the cows early

An adverb reinforces the function of other adverbs and adjectives.

punkt How beautifully does the young woman sing?
She sings extremely beautifully
punkt How successful was the meeting?
The meeting was unusually successful
 
A practical learning approach?


Learn to ask these four key questions:

punkt What is it like?
The orange is ripe (adjective)
punkt How ...  is ... ?
The orange is really ripe (adverb + adjective)
punkt How does it, he, they, etc. ...?
It moves silently (adverb)
punkt How ... does ...?
It moves incredibly silently (adverb + adverb)

Note that many adverbs are formed from adjectives by adding -ly:

punkt beautiful - beautifully
punkt nice - nicely

Note that it is the "how" adverbs in -ly  that are difficult.

Learn the most important irregular forms, e.g.:

punkt good - well
punkt late - late/lately