Hello,<br/><br/>1. Let the door be <b>not</b> opened.<br/><br/>2. Let the door <b>not</b> be opened.<br/><br/>3. Let the door <b>never</b> be opened.<br/><br/>4. Let the door be <b>never</b> opened.<br/><br/>I would like to know the correct position of the 'not' and 'never' in above sentence.<br/><br/>Thanks.