Pages don’t have a base in the URL unless you are associating the page with a parent in the “Page Attributes” section. Example:
Page 1 – “Contact Us” (no parent)
Page 2 – “Directions” (Contact Us as parent)
Page 1 URL – domain.com/contact-us
Page 2 URL – domain.com/contact-us/directions
Also, are you sure you’re dealing with actual pages and not posts in a category?