Dear Friends,<br/><br/>What is the question tag of the following:<br/><br/>He can't have bought a house, ...?<br/><br/>If the question tag for <i>He must have bought a house, <b>can't he</b>?</i>, then the tag for <i>He can't have bought a house</i> - is 'must he'?<br/><br/>Thanks for your help.<br/><br/>Palinkasocsi