Thanks for your answer!
It doesn't seems good (I mean manually add fields to database). Maybe there is other solution to create a form which it will be added to page? I need to make a not really big form (something like review with a few checkboxes, radiobuttons, text fields, etc). It is very importatnt to display a few fields (like transformation) and these should be different per page (I mean, when I add "review" on Page1, it has to display only on Page1, and so on).