Hi Pat, have you tried the right click on your mouse?. It will give you options which depending on your Default Browser could include Check Spelling and Languages including add Dictionaries. If you have altered the left & right clicks on the mouse from the Default Settings then it is opposite,of course.
I dumped Internet Explorer for my regular searches and use FireFox. I only use IE to do an initial search (ever so slow) then from a right click I put a Desk Top Short-cut on.From then on I use FF. FF only allows Bookmark References to chosen sites.