What url do you need to have in the form action? "xyz/mno/add" or "pages/modules/add.aspx?type=xyz&tag=mno"?

Hello I have a lot of form pages in my website and my rewrite conditions are like this: <rule name="box_section_main"> <match url="^([_0-9a-z-]+)/([_0-9a-z-]+)/add/?$" /> <action type="Rewrite" url="pages/modules/add.aspx?type={R:1}&amp;tag={R:2}"...