How do I copy/paste in IE9?

Do you mean edit a web page within IE9 You can’t.If what exactly you recommended was duplicate a word and insert it into a fill-in box then it’s similar to with any program:Ctrl+C/Ctrl+V or maybe Ctrl+Insert/Shift+Insert or utilize the left mouse button to help highlight that text you desire, click the correct mouse press button to copy, click to the box you want to put the actual text, work with right click on again to past that text.