Rules

[note]1. In most cases, an adverb is formed by adding ‘-ly’ to an adjective:[/note]

Adjective	Adverb
cheap quick slow	cheaply quickly slowly

Examples:

• Time goes quickly.
• He walked slowly to the door.
• She certainly had an interesting life.
• He carefully picked up the sleeping child.

Rules

[note]If the adjective ends in ‘-y’, replace the ‘y’ with ‘i’ and add ‘-ly’:[/note]

Adjective	Adverb
easy angry happy lucky	easily angrily happily luckily

[note]If the adjective ends in -‘able’, ‘-ible’, or ‘-le’, replace the ‘-e’ with ‘-y’:[/note]

Adjective	Adverb
probable terrible gentle	probably terribly gently

[note]If the adjective ends in ‘-ic’, add ‘-ally’:[/note]

Adjective	Adverb
basic economic tragic	basically economically tragically

Note: Exception: public – publicly

[note]2. Some adverbs have the same form as the adjective:[/note]

Adjective and Adverb
early fast hard high	late near straight wrong

Compare:

• It is a fast car.
• He drives very fast.
• This is a hard exercise.
• He works hard.
• We saw many high buildings.
• The bird flew high in the sky.

[highlight]3. ‘Well’ and ‘good'[/highlight]

[note]’Well’ is the adverb that corresponds to the adjective ‘good’. [/note]

Examples:

• He is a good student.
• He studies well.
• She is a good pianist.
• She plays the piano well.
  
• They are good swimmers.
• They swim well.