When you’re done adding questions, you can choose your Form Settings.

Decide who can access your form and whether to collect email addresses from people.
By default, form sharing is limited to your organization and email collection is turned off.

Click "Settings", then "General" and choose from the following options:

You have also, other parameters you can change.

In the "Presentation" tab:

When you’re done making changes, click Save.

To let people review and edit your form, at the top right, click "More" and then "Add collaborators".

Under Invite people, enter the email addresses of the people you want to share with and then click Send.
Whoever you invite can edit any part of your form, including responses and where they are saved.