<i>It is not correct to combine different sentence types in a compound sentence.</i><br/><br/><a href="http://www.scientificpsychic.com/grammar/enggram2.html"><a href='http://www.scientificpsychic.com/grammar/enggram2.html' target='_blank' rel='nofollow'>http://www.scientificpsychic.com/grammar/enggram2.html</a> </a><br/><br/>What about:<br/><br/><b>I know there is nothing wrong, but do you?</b><br/><br/>Thanks