How do I share forms from one user to another?

If you want to add another Jotform user as your sub-user, you can simply follow this guide to share forms with Sub-Account users: How to Share Forms with a Sub Account-User

Also, we have some other alternatives such as cloning a form or moving a form:

You can follow this guide to clone forms: How-to-Clone-an-Existing-Form-from-a-URL

If you wish, we can move your form to another user with all the submissions. All you need to do is sharing your form id and the target username of the account with us.