I created four forms and I would like to email them all at once

How do I email more than one form in a single email

If I understand correctly, you wanted to publish your forms using the Email.

Guide : How to Send a Form via Email

What you can do is just add all the forms link in the email message that you will send. You can copy the URL link of each of the form and paste it in the email message before sending.

Guide : Where to Find My Form URL

I hope this help. Let us know if you need further assistance.