tolong berikan contoh prohibition expression

do not touch my book

contohnya prohibition :

Mother : Lucy wash your hands before eating.
Lucy      : Yes, mom.
Mother  : And turn off the tap before you leave the wash basin. ***Don't let the water overflow.***
Lucy      : Okay, Mom. but why?
Mom     : oh .... Lucy, ***don't forget that it is the dry season now.***
Lucy     : yes Mom, I watch them on television
Mom    : So, you cannot let water flow for nothing, while a lot of people outside are unable to use even a small amount of it. We should help the planet to preserve water for everyone.
Lucy     : Yes Mom, I'll always remember that.

kalimat  don't let the water overflow adalah kalimat prohibition