Как использовать проверку грамматики?

{ 
  If you are using Delphi 2+ and have the ActiveX component TVSSpell, it is very 
  simple to add a spell checker to your TMemo applications. 
  (Note: Do not use this component with a Rich Edit application because of text 
  formatting problems.) 
} 
 
 
procedure TForm1.Button1Click(Sender: TObject); 
begin 
  if Memo1.Text = '' then Exit; 
 
  VSSpell1.CheckText := Memo1.Text; 
  if VSSpell1.ResultCode = 0 then 
    Memo1.Text := VSSpell1.Text; 
end; 
 
 
{ 
  To distribute a VisualSpeller application you have to include the following 
  files: 
 
} 
 
{ 
- VsSpell.HLP 
- VSPELL32.OCX 
- VSPELL32.DLL 
- AMERICAN.VTD 
- VSPELL.HLP 
} 

Взято с сайта https://www.swissdelphicenter.ch/en/tipsindex.php