Ctrl + Shift + Space bar : Create a non breaking space

Ctrl + B : Make letters bold


Ctrl + I  : Make letters italic


Ctrl + U : Make letters  underline


Ctrl + Shift + <  : Decrease font size one value


Ctrl + Shift + >  : Increase the font size one value


Ctrl + [  : Increase the font size by 1 point


Ctrl + ]  :Decrease the font size by 1 point


Ctrl + Space bar  : Remove paragraph or character formatting


Ctrl + C  : Copy the selected text or object


Ctrl + X  : Cut the selected text or object


Ctrl + V  : Paste text or an object


Ctrl + Alt + V  : Paste special


Ctrl + Shift + V  : Paste formatting only


Ctrl + Z  : Undo the last action


Ctrl + Y  : Redo the last action