Q: Have you thought about it?<br/>A: Yes, I have thought about it. (means I thought about it in the past and I may or may not thinking it now)<br/><br/>Q: Had you thought about it?<br/>A: Yes, I had thought about it. (means I thought about it in the past and now I stop thinking it)<br/><br/>I am always confuse with the usage of present perfect and past perfect tense. Can someone tell me whether I get the meaning correctly?<br/><br/>Thank you.