<b>Please tell me will I use the singular or plural of <i>'common ground</i>' having in mind that I mean <i>'points in common'.</i></b><br/><br/>Both managers have lots of<span style="color:rgb(0,0,255);"> <b>common <i>ground.</i></b></span><br/><br/>or<br/><br/>Both managers have lots of <span style="color:rgb(0,0,255);"><b>common <i>grounds.</i></b></span>