Welcome to the community, @Linda_Huckle!
Unfortunately, that is a limitation of Airtable forms — they will only show the primary field.
One workaround that you can use is to change your primary field to become a formula field that displays all the different information that you would like to see.
Otherwise, you’d have to use external form tools to make this work.
You can either use the MiniExtensions form, or the combination of JotForm + On2Air Forms.