I wrote my answer on my laptop, then took a photo and attached it. Hope it helps and it is what your looking for!
That is the best book that I ( have read )on that subject.
reason = because that event has already happend in past but its impact is still on present so it is past perfect..........
Answer: Evaluating evidence allows you to have a more rational and logical outlook on problems and situations that you may encounter, rather than basing your decisions off of emotion or inaccurate sources. Having reliable evidence that you have thoroughly evaluated enables you to make better decisions and view things from an unbiased point of view.
Sorry. I'm not sure if this helps or not, but this is the best that I've got (╥﹏╥)
U use it when u are talking about a noun
