Adjectives give information about nouns. For example:
- She's an excellent dancer.
- I've got a new apartment.
Adverbs modify verbs, they tell how something is done. For example:
- She learns quickly.
- You can speak English well.

Adjectives come before the noun. For example:
- This is a beautiful bird.
"This is a bird beautiful." is incorrect.
They provide information such as size (big, small), shape (round, square), color (yellow, green), nationality (Chinese, Polish), and opinion (good, bad).

Adjectives don't change depending on number. For example:
She has a cute puppy.
She has three cute puppies.
Note that the adjective doesn't change with number.

Adjectives also come after certain verbs such as be, feel, look, and taste. For example:
- I'm really happy today.
- She's got a new job so she feels great.
- You look wonderful!
- This chicken tastes delicious.

Adverbs are often formed by adding -ly to an adjective. For example:
- quick (adjective) - He's quick at learning new things.
- quickly (adverb) - He learns quickly.
- bad (adjective) - He didn't get a bad test score.
- badly (adverb) - He didn't do badly in his test.

For adverbs made from adjectives ending in "-y" - change "-y" to "-i" and add "-ly". For example:
- easy (adjective) - He thinks math is easy.
- easily (adverb) - He can do math easily.
- happy (adjective) - He's a happy man.
- happily (adverb) - He works happily every day.

For adverbs made from adjectives ending in "-le" - change "-le" to "-ly". For example:
- simple (adjective) - The teacher makes difficult things simple.
- simply (adverb) - He teaches simply and clearly.

Some adverbs are the same as adjectives. For example:
- He runs fast (adverb) - He's a fast runner. (adjective)
- He studies hard. (adverb) - It's a hard life. (adjective)

The adverb of "good" is "well". For example:
- She's a good pianist.
- She plays the piano well.

Adverbs can also modify adjectives and other adverbs. For example:
- That's a good book.
- That's a very good book.
- She's a talented girl.
- She's an incredibly talented girl.
- You're right!
- You're absolutely right!

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