<p>how do you know if a neither/nor phrase is singular or plural?</p>
<p>It follows the second word. For example:</p>
<p>Neither my dad nor any of my friends have a giant toothbrush. "my friends" decides</p>
<p>Neither my friends nor my dad has a giant toothbrush. "my dad" decides</p>
<p>(From Taggart's writing packet.)</p>