The Form elements
Current version: 10.1
You use the elements in the Form elements pane to quickly build your forms by dragging elements directly to where you need them. There are default elements available for form fields such as Text, Email, Dropdown list, and so on.
Note
By default, Sitecore Forms comes with basic .cshtml Razor files for all form elements. Go to Website/Views/FormBuilder/FieldTemplates/ to edit the .cshtml files to make them match your requirements and/or add new ones.