You don’t need to display every field from the database table on your form. To remove a field from Form View, right-click your mouse and select Columns. The Columns page of the "Format Query" dialog is displayed. Remove the columns you want to hide from Selected Fields to Available Fields. This works in the same way as for a table (see Hiding and showing columns using a columns selection).
Note: If you have already hidden some fields while in Table Grid View, these fields will also be hidden when you go to Form View. This will not be the case the other way round though, unless you use a named columns definition in forms to hide columns.