Complaining.

1. Come on!! 
Try harder.
You can do this.
A bit more effort, please.
Come on with you.
2. You can do better than this.
Is that the best you can do.
Better than that. !!
Can't you do any better than that.
I am sure that's not the best you can do.
I think there is some room fir improvement.
I know you are capable of better work.

Sayumporn 065 #3EN