Some short-cut key which are mostly Used

1) Open new document:

Ctrl + N

2) Save file
Ctrl + s

3) Print document
Ctrl + p

4) Copy

Ctrl + c

5) Paste

Ctrl + v

6) Underline the text

ctrl + u

7) Italic the text

ctrl + i

8) for left alignment

ctrl + l

9) for centre alignment

ctrl + e

10) for justify

ctrl + j

11) right alignment

ctrl + r

(For more wait for update)