how can I share a form with another user, giving them a copy that they can use

Hi,

If you want to share your form that will allow other user to modify your form, you can share it by following the instructions provided in this article: How to Share Forms with a Sub Account User. But if you want other user to have a copy of your form and then modify it on there end without affecting your form, you can suggest to the user to clone your form. You can check this article for more information on cloning form: How to Clone an Existing Form from a URL.

Do let us know if you need further assistance.
Regards.