Translation:He is not a good student.
This app is mocking me now. ;)
Thank you E12theK, and you're quite right
Why is it "geen goede student" and not "niet goede student?"
Have a read through this topic: https://www.duolingo.com/comment/3734833
Would a translation as 'he is a bad student' be incorrect?
A bad student = een slechte student
Also if someone isn't good that does not automatically make them bad.