Hi. Which is correct?<br/><br/>He thought he must be sane.<br/><br/>He thought he must have been sane.<br/><br/>He thought, "he must be sane."<br/><br/>He thought he must be sane when he did this.<br/><br/>He thought he must have been sane when he did this.<br/><br/>He thought, "he must be sane when he did this."