In order to add names to your fields and see them in your form results, you can use the following options.

Insert a combination of a question and an input block:

Add a Label above your input block:

Add a Heading 3 above your input block:

Add a placeholder text in your input field:

If you don't want to display the question in your form, but you want to avoid untitled fields in your form results, you can hide your question, label or heading 3 in your form and it will still be visible in your form results.

Click :: and Hide block to hide content from respondents in your form.