I want to add a fairly lengthy terms and conditions to the beginning of form; people will use this to apply to be at events. Ideally this would be on it's own screen. How can i do this?

To add the terms and conditions to your form, you need to include "I agree to the Terms and Conditions" elements to your form and in these elements, you can add your actual terms and conditions directly.
Alternatively, you can use the "HTML Text" element to write out all your terms and conditions. This gives you the flexibility to format the text as needed. Then, place the "I agree to the Terms and Conditions" element below it so that users can check the box to indicate their acceptance before proceeding.
If you'd like the terms and conditions to be on its own screen, simply insert a "Page Break" element right after the terms. This will allow users to view the terms and conditions on one page, while the rest of your form details will be shown on the next page.
This format will provide clarity and ensure that participants are well-informed before they apply.