How and When to Use Regarding and About

by Nethravathi S
(Bangalore, Karnataka, India)

Hello to you,

Can you please explain the difference between the following words and phrases?

1. concerning
2. regarding
3. about
4. in respect of
5. with reference to
6. with regard to
7. relating to
8. in respect of
9. in connection with

I would especially like to know the difference between "regarding" and "about."

Thanks a lot.