function start() {
  document.past.find.focus();
}

function validate() {
 
  if (document.past.find.value != "found") {
      alert("try again for find");
      document.past.find.focus();
      document.past.find.select();
      return false;
}
  if (document.past.stand.value != "stood") {
      alert("try again for stand");
      document.past.stand.focus();
      document.past.stand.select();
      return false;
}
  if (document.past.Catch.value !="caught") {
      alert("try again for catch");
      document.past.Catch.focus();
      document.past.Catch.select();
      return false;
}
  
  if (document.past.write.value !="wrote"){
      alert("try again for write");
      document.past.write.focus();
      document.past.write.select();
      return false;
  }
  if (document.past.bring.value !="brought"){
      alert("try again for bring");
      document.past.bring.focus();
      document.past.bring.select();
      return false;
  }
  if (document.past.Do.value !="did") {
     alert("try again for do");
     document.past.Do.focus();
     document.past.Do.select();
     return false;
}
 
  if (document.past.tell.value !="told"){
      alert("try again for tell");
      document.past.tell.focus();
      document.past.tell.select();
      return false;
  }

  if (document.past.leave.value !="left"){
      alert("try again for leave");
      document.past.leave.focus();
      document.past.leave.select();
      return false;
  }
  if (document.past.see.value !="saw"){
      alert("try again for see");
      document.past.see.focus();
      document.past.see.select();
      return false;
  }
  if (document.past.speak.value !="spoke"){
      alert("try again for speak");
      document.past.speak.focus();
      document.past.speak.select();
      return false;
  }
  if (document.past.fall.value !="fell"){
      alert("try again for fall");
      document.past.fall.focus();
      document.past.fall.select();
      return false;
  }
  if (document.past.sell.value !="sold"){
      alert("try again for sell");
      document.past.sell.focus();
      document.past.sell.select();
      return false;
  }
  if (document.past.lose.value !="lost"){
      alert("try again for lose");
      document.past.lose.focus();
      document.past.lose.select();
      return false;
  }
  if (document.past.hear.value !="heard"){
      alert("try again for hear");
      document.past.hear.focus();
      document.past.hear.select();     
      return false;
   }
  if (document.past.meet.value !="met"){
      alert("try again for meet");
      document.past.meet.focus();
      document.past.meet.select();
      return false;
   }
   if (document.past.build.value !="built"){
      alert("try again for build");
      document.past.build.focus();
      document.past.build.select();
      return false;
   }
   if (document.past.go.value !="went"){
      alert("try again for go");
      document.past.go.focus();
      document.past.go.select();
      return false;
   }
   if (document.past.win.value !="won"){
      alert("try again for win");
      document.past.win.focus();
      document.past.win.select();
      return false;
   }
  if (document.past.sleep.value !="slept"){
      alert("try again for sleep");
      document.past.sleep.focus();
      document.past.sleep.select();
      return false;
   }
  if (document.past.say.value !="said") {
      alert("try again for say");
      document.past.say.focus();
      document.past.say.select();
      return false;
   }

   alert("Good work. All your answers are correct.");
   return true;
}

function answers() {
    NewWin=window.open('answers1.html','NewWin',
   'toolbar=no,status=no,width=200,height=380');
}