Hi, Alexander!  Recently you wrote in a message to All:   
      
    ak>  -----Beginning of the citation-----   
    ak>     Harry followed his gaze up the carefully tended   
    ak>  front path and felt his heart sink. The front door   
    ak>  was hanging off its hinges.   
    ak>  -----The end of the citation-----   
      
    ak>  Why sink -- not sank?   
      
      
               I reckon "sink" is an infinitive in this context.   
      
               I'll post more examples later....  :-)   
      
      
      
      
   --- timEd/386 1.10.y2k+   
    * Origin: Wits' End, Vancouver CANADA (1:153/716)