Bon jour,
I still don't understand why des changes to de or d' . If it's a vowel it's fine but adjectif+ noun ,why in this case . Why des changes ,how does it make a difference to the sentence.
In case of partitive article ,while doing negation des changes to de as there is no quantity. That's understandable.
What's the rule here ,as it's article des.
Thank you.