RewriteEngine On

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d

RewriteRule ^sign-in sign-in.php [L]
RewriteRule ^sign-up sign-up.php [L]
RewriteRule ^sign-out sign-out.php [L]
RewriteRule ^verify verify.php [L]
RewriteRule ^forgot_password forgot_pass.php [L]
RewriteRule ^reset_password reset_pass.php [L]

#RewriteRule ^([0-9a-zA-Z_/]+) user/index.php?page=$1 [NC,L]