How do I add the "Submit" button at the end of a form?

How do I add the "Submit" button at the end of a form?

Hi,
I've made an inquiry form on Zoho which I intend to embed in my website's HTML.
It's complete, except I can't figure out how to add a "Submit Form" button at the end of the form. What do I use from the "Insert Fields"?
Your help would be appreciated.
Thanks
Manasi
manasik