[Chris87]

Hi, I'm always Unregistered9996, thank you for asnwering and sorry about the title, I wrote it wrong 'cause I had in my mind that "continuous" word.

Anyways, in short you say that using a Simple Past interrogative form for a Past Perfect is wrong, so I would like to insert some example to see if I got it well:

(Past Perfect) - Affermative: "My car is still broke 'cause I have hitted it badly."
(Past Perfect) - Interrogative: "Have you hitted you car?"

(Simple Past) - Affermative: "I saw my friend."
(Simple Past) - Interrogative: "Did you see your friend?"

If I had used another interrogative form for the Past Perfect the sentence would have been wrong, right? The fact is that sometime I get confused 'cause the Past Perfect is used for things happened in the past but that have still real effects on the present.

So the affermative sentence is easy since the car is still broke so is easy to know that I need to use the Past Perfect, but in the interrogative the friend just asks if he hitted the car in a precise moment of the past, so my mind would write "Did you hit your car?".

I hope you can give me a explanation to know how to understand this difference, thank you =).