Answer:

Knowing what is an ADJECTIVE and what is an adverb is very important when you learn English grammar. For example, the following sentences are typical mistakes caused by confusion over the difference between ADJECTIVES and adverbs.

“He works hardly.” (Correct: “He works hard.”)

“She writes good.” (Correct: “He writes well.”)

“It’s a really problem.” (Correct: “It’s a real problem.”)

Adjectives describe nouns.

“A good student.”

“A nice day.”

“He is interesting.”

Adverbs describe verbs or adjectives.

“He eats well.”

“She learns quickly.”

“I’m really tired.”

Why adjectives and adverbs can be difficult

1. Some adjectives and adverbs have the same form.

“She’s a fast driver.” (adj)

“She drives fast.” (adv)

“TOEFL is a hard exam.” (adj)

“The students work hard.” (adv)

“She has straight hair.” (adj)

“He went straight home.” (adv)

2. Not all adverbs end in -ly.

For example: “She works well with OTHERS.”

“Eagles fly high in the sky.”

3. Some adverbs have two meanings.

Hard

“He works hard.”

“I hardly know him.” (barely)

Close

“She SAT close to the conductor on the bus.” (next to)

“I listened closely to what he said.” (paying attention)