Hello
I have a problem to understand in the usage of verb "use" in different circumstances. What are the rules? Please look at this two examples and explain me the difference:
1. How long have you been coming to this school?
2. How long have you used this book?
In both sentences there is "how long". Why in the second one is present perfect simple?
Second problem:
http://www.essentialdayspa.com/forum/viewthread.php?tid=24106In this article is headline: "Eyelash Tints/Dyes: How long have you
used them? Swiss opar?"
but in this article:
http://www.mahalo.com/answers/technology-and-internet/how-long-have-you-
been-using-the-internet-for-communication-1
"How long have you been using the Internet for communication?"
What is the difference?
Thanks for help
Martin Sobota, teacher for Slovakia