I write this guide in English, that helps on learning in my opinion.

If you say: "My English is very well!" you just lie, because that's just wrong!

Let's talk about adverbs, in German we don't really use them aware (bewusst)
but in English there is a big difference between adverbs and adjectives.

What's an adverb?
An adverb describes, in what way someone does something, you can see it
as an adjective for verbs.
But adjectives themselfes are for nouns, they describe how sth. is.

Example to see the differences between adjectives and adverbs:

Adverb:
Slow down, you're talking very fast!
He waited calmly for the end of the lesson.

Adjective:
That's a very nice person.
Look at that calm dog!


How to build adverbs?

Well, most of the adjectives are really easy to transform:
Just add a -ly on the similar adjective.

Examples:
nice --> nicely
warm --> warmly
cold --> coldly

If there is a y as last letter, replace it with an i
easy --> easily

If there is a le as last letter, replace just the e with y
horrible--> horribly

If there is just a L as last letter, replace nothing, just add the ly
careful --> carefully

If there is a ly as last letter, nothing changes
friendly --> friendly


There are irregular forms too, like always, you just have to learn them because they are used very often.
Here a little list with the most important ones:

good --> well
fast --> fast
hard --> hard

IMPORTANT: The verb be doesn't need an adverb

My stomach is very warm.
This film is horrible!

An example to the end:

Right:
My English is very good!
I talk English very well!
Wrong:
My English is very well!
I talk English very good!


If I made a mistake, just correct me,
if you have a question, just ask.

Dann sag ich also:

This thread is original.
I saw the original thread.
I wrote the post like the original rules?

Thanks for this, you wrote this guide very well.

_________________
1234

Well, that's alright, no adverb. ^^

Just to add:
A sentence with "original" as adverb would be like:
"I originally wrote this post to avoid faults."
The "original" is related to the verb "wrote", so you add a "-ly".