Bien vs bon

Good food, a good person, a good book, good French speaking. In Dutch you only need to know 1 word, but in French you have bien or bon. When do you use which word now?

Receipt

1. If the word ‘good’ belongs to a noun (note, the word bon / bonne / bons / bonnes changes with the noun):
   • J’ai lu un bon livre. (I’ve read a good book.)
   • J’ai mangé de bons fruits. (I have eaten good fruit.)
   • J’ai passé une bonne soiree. (I had a nice evening.)
2. With the verb être:
   • If you want to say that something is tasty:
     Ce vin est très bon. (This wine is very good.)
   • If you want to ask or say something is okay or fine:
     C’est bon? (Are you ready? Is it okay ?.)
     And also: C’est bon maintenant! (It’s enough like this!)
   • If you want to say something is correct:
     Ton devoir est bon. (Your homework is good.)

Bien

1. If the word ‘good’ belongs to a verb (note, the word bien does not change!):
   • Ma voiture roule bien. (My car drives well.)
   • Je danse bien. (I dance well.)
   • Elle parle bien français. (She speaks good French.)
2. With the verb être, if you want to say that something is nice, interesting or cool, or with a compliment (bravo!):
   • Ce livre est bien. (This book is interesting.)
   • Ton apartment est bien. (Your flat is cool.)
   • C’est bien que tu fasses ça. (It’s a good thing you do.)
   • C’est bien! Tu as tout compris. (Good! You got it.)