Which one of the following sentences is grammatically correct?
Why do you have added this tag?
Why have you added this tag?
In my opinion the second one is correct and I use it for my writings, but today I have seen the first form and I am in doubt if the first one is correct or not?
Why do you have added Android tag to this article?
andWhy have you added Android tag to this article?
– frogatto Feb 17 '15 at 12:17