RewriteEngine On
RewriteBase /

RewriteRule ^video/(.*)$ /?video=$1 [L,NC,QSA,NS]
RewriteRule ^preview/(.*)$ /?preview=$1 [L,NC,QSA,NS]
RewriteRule ^edit/(.*)$ /?edit=$1 [L,NC,QSA,NS]
RewriteRule ^cut/(.*)$ /?cut=$1 [L,NC,QSA,NS]
RewriteRule ^delete/(.*)$ /?delete=$1 [L,NC,QSA,NS]