I want to change example.com/xxx/* to example.com/yyy/* . I have spent a lot of time on this but can't seem to figure it out. Here is what I started with:

Code:
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>
And here is what I've tried added:

Code:
Options +FollowSymLinks  

# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
 
RewriteRule example.com/xxx/ ./yyy/$1  
RewriteRule example.com/aaa/ ./bbb/$1  

</IfModule>

# END WordPress
The code doesn't seem to do anything. What am I doing wrong?

Thank you.