Below is the listing of some of the keyboard Shortcuts in Ms Word
Use CTRL+SHIFT+C to Copy the style and CTRL+SHIFT+V to Apply the copied Style
CTRL+1 For linespacing = 1
CTRL+2 For linespacing = 2
CTRL+5 For linespacing = 1.5
CTRL+E For aligning the paragraph to center
CTRL + L For left aligning the paragraph
CTRL + R For Right aligning the paragraph
CTRL +J For aligning the paragraph on both ends
ALT+CTRL+D Endnote
ALT+CTRL+F Footnote
SHIFT + F3 Change Case
CTRL+SHIFT+A Change case to ALL caps
ALT + SHIFT + X Mark index Entry window appears
CTRL+SHIFT+N Change the style to Normal
CTRL+ Plus sign For Subscript
CTRL+SHIFT+ PLUS SIGN For Superscript