What is JotForm?
JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
At JotForm, we want to make sure that you’re getting the online form builder help that you need. Our friendly customer support team is available 24/7.
We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.
Please refer to the user guide: -How-to-Share-Forms-with-a-Sub-Account-User
You can see your shared options on this page https://www.jotform.com/myaccount/users
But I think you misunderstood the concept of shared forms. The sub-users are actually NOT the one sharing the form.. it is the Main account instead.
So, you will not be able to see in your account(main account) the forms owned by the sub-users unless the sub-user will share it to you also.
Let us know if you need further clarification on this.