good - well
Something that is good is pleasant, acceptable, or satisfactory. The comparative form of good is better. The superlative form is best.
Your French is better than mine.
This is the best cake I've ever eaten.
Good is never an adverb. If you want to say that something is done to a high standard or to a great extent, you use well, not ‘good’.
She speaks English well.
I don't know him very well.
➜ See well
The comparative form of well is better. The superlative form is best.
I changed seats so I could see better.
Use the method that works best for you.
➜ See better