1) I think you should learn to drive.
Afrimativ : Yes, that's a good idea.
Negativ: I'm not sure i want to do that.
2) You could try to get fit.
Af : Yes, maybe you're right.
Neg : Do i have to?
3) I think You need to earn some money.
Af : Yes, i think I will.
Neg : No, I can't do that.
4) You could try to change the way you look.
Af : Yes, maybe you're right.
Neg : No, i don't want to do that.