can I download the form

If you're asking to download a Fillable PDF copy of your form, here's what you need to do. 

You may also refer to this guide, How-to-create-a-PDF-form

However, if what you would like to do is to download the full source code of your form, I suggest you check this guide instead:

How-to-get-the-Full-Source-Code-of-your-Form