Good or Well
Good is an adjective and well is an adverb. Many people, including many native speakers, incorrectly use the adjective form good, rather than the adverb well.
Examples:
I did good on the test. INCORRECT! - Correct form: I did well on the test.
She played the game good. INCORRECT! - Correct form: She played the game well.
Use the adjective form good when describing something or someone. In other words, use good when stating how something or someone is.
Examples:
She is a good tennis player.
Tom thinks he is a good listener.
Use the adverb form well when describing how something or someone does something.
Examples:
She did extremely well on the exam.
Our parents think we speak English well.
Do you understand the rules? Test your knowledge with this good vs. well quiz.