Which are correct:<br/><br/><span style="color:#800080;">1) You did not start smoking again and neither did I. </span><br/><span style="color:#800080;">2) You did not start smoking again and nor did I. </span><br/><br/><span style="color:#800080;">3) You and Jeff did not start smoking again and neither did I. </span><br/><span style="color:#800080;">4) You and Jeff did not start smoking again and nor did I.</span><br/><br/>Gratefully,<br/>Navi.