Translation:Vous deviez montrer une autre attitude.
What is wrong with "Tu as dû montrer une autre attitude"
I see nothing wrong with you sentence :/
Why is "vous avez du montrer une autre attitude" wrong please excuse lack of circumflex
This is wrong. Pay attention to upcoming lessons and you'll learn several ways to say this.
What about: "Tu devais presenter une autre attitude"
Vous deviez have never been shown in the options. twice in a row...
