Do you want a document that contains all the keyboard shortcuts available in Word?
There is a macro available in Word that will give you this document.
Go to the “View” tab and under Macros -> View Macros, search for ListCommands after choosing “Word commands” in the “Macros in:” dropdown box.
Run this macro. Choose “Current keyboard settings” radio button.
You will see the macro generating a complete document with all the keyboard shortcuts.
(N.B. Practice the shortcuts, at least a few at a time, so that you will become thorough with the shortcuts.)