***** NOT A TEACHER *****
Hello, Cindrella:
Most books tell us that the present perfect (have / has + past participle) is used when we want to refer to something that started in the past and still touches the present.
Let's say that I became a member in November, 2014. Let's say that you went to my profile in January, 2015. Let's say that you were the first person to go to my profile. So you would see a notice that said: "This page has had 0 visitors." After you leave, then the notice will change to: "This page has had 1 visitor [you!]." Then if another person goes to my profile, the notice will change to: "This page has had," well, you can finish that sentence.
A very nice member named Cindrella has started a thread entitled "A particular kind of sentence." So far (up to the time of my typing), Cindrella's thread has had 178 views. And soon it will have more.
Let's say that we are in an ice cream parlor now. We walked in at 10 a.m. I ordered one cream cone. I ate it and ordered another ice cream cone. I ate it and ordered another ice cream cone.
Let's say that it is now 10:30 a.m. and that I want to order another ice cream cone. You would probably say, "James, stop it! You have already had 3 ice cream cones. That is enough for today!"
James
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