<p>See title, can anyone explain to me the difference??</p>
<p>im not sure but i can take a guess
have thrown = present
had thrown = past
you have thrown a ball
you had thrown a ball</p>
<p>another example:
i have been well (includes now and past)
i had been well (only past)</p>
<p>by present, i suppose you mean present perfect? present of course is throw, throws. </p>
<p>its not this way in some languages, but in english
threw = have thrown = present perfect
had thrown = past perfect, you would use this if you are talking about the past, and before that something happened. for example, "I <em>told</em> him that I <em>had thrown</em> the ball."</p>
<p>"Have thrown" indicates that the throwing took place in the past and has continued into the present.
"Had thrown" indicates that the action is no longer occurring.</p>
<p>"Had thrown" indicates the action happened prior to something else. For example, "I had thrown the ball even before you told me to." Both actions (the throwing and the telling) are in the past, but the throwing happened before the telling.</p>
<p>"I have thrown this queston open to all of the members of the CC community and hope that they will respond to your inquiry."</p>
<p>"I had thrown a similar question open to the group last year and we got a very prompt and clear explanation."</p>
<p>i thinkhave thrown is perfect and had thrown is pluperfect</p>
<p>Have thrown is present perfect. As in it means you threw a ball already but this event was recent or/and has carried on into the present or is related to the present somehow.</p>
<p>Had thrown is past perfect. This means you are comparing this event to another event, in which the "had" event occured before the event it is being compared to.</p>
<p>ie: I had turned on the T.V. when Joe entered the room. </p>
<p>I had turned on the T.V. already when Joe entered the room.</p>