I need an school application form.

I am starting a school and I need an school application for the parents to fill out on their children

You can build your form from the scratch: https://www.jotform.com/help/2-How-to-Create-Your-First-Web-Form 

As well, you can check in our templates gallery, and use any form you would like to: https://www.jotform.com/help/106-How-to-Use-Form-Templates

Let us know if you need more help, we will be glad to assist you.