I thought that we could write the 4 sounds using...
(1 2 3 4) as in 'wo3' for 'I' or 'me'
From this website,
I learned the keyboard buttons for the 4 sounds...
(- / V \ using Courier Fonts) as in 'woV'
~~~Blog & Website to Follow
John Nicholson Website
Has a wide interest and well organized website.
Here are some of the things you can find at his BLOG.
Learn Mandarin Chinese
Dictionary by John Nicholson ~ English–Chinese ~ http://www.1jn.com/chinese/engchi.html
Dictionary by John Nicholson ~ Chinese–English ~ http://www.1jn.com/chinese/chieng.html
Asian Film Ratings & Reviews
Quotes in GIF Animation ~ by John Nicholson
01 ~ Happiness is your decision.
02 ~ Friendship is the best relationship.
03 ~ Fear never solves the problem.
04 ~ Anger never makes anything better.
05 ~ Stay focused. Enjoy the moment.
06 ~ Never expect, just appreciate.
07 ~ Do the right things always, no exceptions.
08 ~ Accomplishment IS the reward.
09 ~ Prepare for what you want to do.
10 ~ Be the best person you can be.
If you still see this GIF Animation...
then his website is still using it.