Good
"She is a good student."
These sentences are correct:
- Sam is a good boy.
- They live in a good house.
- This is not a good place to stay in.
These sentences are incorrect:
- Sam behaves good.
- They eat good.
- She sings really good.
Well
"Well" is usually an adverb, and it generally describes actions."She dances well." - These sentences are correct:
- Sam behaves well.
- They eat well.
- She sings really well.
These sentences are incorrect:- Sam is a well boy.
- They live in a well house.
- This is not a well place to live in.Note: "Well" can be used as an adjective. In such cases, it is usually not used before the noun, and it means "healthy" or "in a good state."For example:
- You don't look well.
- All is well with my family.
- Get well!