Case studies can determine the effects of programs and reasons for success (or failures).
Case studies can show the effects of programs and reasons for succeeding.
Case studies provide no answers about the impact of a program succeeding of failing.
The brown dog is chasing a stick.
The girls have the helmets on their head.
Beating dogs is really fun, everybody should do that.
The men in the Family Dollar parking lot are about to go inside to shop.
Most people say that that car is too small for them.
The boy is playing with a ball.