.htaccess RewriteRule(s) not working - .htaccess

Question

I am trying to learn how to use RewriteRule.
I have 2 'pages' (wordpress)-
domain.com/webinars/ (shows list of all webinars)
and
domain.com/webinar/ (shows specific webinar details)
I have trying to set the following conditions -
(1) domain.com/webinars/{Year}/{Month}/ will load /webinar/?year={Year}&month={Month}
(2) domain.com/webinar/ (with no /{Year}/{Month}) will load /webinars/
(3) domain.com/webinar/?year={Year}&month={Month} will redirect to /webinars/{Year}/{Month}/ and then apply condition #1
This is my attempted code
RewriteEngine On
RewriteRule ^/webinars/([0-9]+)/([A-Za-z0-9]+)/$ /webinar/?year=$1&month=$2 [NC]
RewriteRule ^/webinar/$ /webinars/
RewriteRule ^/webinar/year=(\d+)$month=([\w-]+)$ /webinars/%1/%2? [R=301,L]
Condition #1 results in a 404 page not found
Condition #2 shows /webinar/ and not /webinars/
Condition #3 stays on domain.com/webinar/?year={Year}&month={Month} and does not redirect
What am I doing wrong? Only other code in my htaccess file is the default wordpress block.

Answer 1

Try the following :
Options +FollowSymlinks
RewriteEngine on
RewriteRule ^webinars/([^/]+)/([^/]+) /webinar/?year=$1&month=$2 [NC]
The rest could be done the same way .

Answer 2

Try with below rules,
RewriteCond %{REQUEST_URI} ^/webinar$
RewriteCond %{QUERY_STRING} ^year=([^/]+)&month=([^/]+)
RewriteRule ^ http://example.com/webinars/%1/%2/? [R=302]
RewriteCond %{REQUEST_URI} ^/webinars/([^/]+)/([^/]+)/$
RewriteRule ^ webinar/?year=%1&month=%2 [L,END]
RewriteCond %{REQUEST_URI} ^/webinar/$
RewriteRule ^ webinars/ [L]

Answer 3

You can use this
RewriteEngine on
# if /webinar/ is requested skip the rules and serve /webinar/ directory
RewriteRule ^webinar/?$ - [L]
#redirect /webinar/?year={year}&month={month}
#To /webinar/year/month
RewriteCond %{THE_REQUEST} /webinar/\?year=([^\s&]+)&month=([^\s&]+) [NC]
RewriteRule ^.+$ /webinar/%1/%2? [L,R]
# rewrite new url to the old one
RewriteRule ^webinar/([^/]+)/([^/]+)/?$ /webinar/?year=$1&month=$2 [L,NC]