Do you know in which tables I can find if it page o a user has permission to read, write, modify a p

Do you know in which tables I can find if it page o a user has permission to read, write, modify a page? 
in the PSAUTHITEM table I have the DisplayOnly field that tells me 1 if it only has everything displayed and 0 if it has more permissions, the Authorizicedactions field does not follow a pattern, they have these numbers but they do not mean the same thing on all pages and I do not know how to interpret it
In some pages but not at all:
0--Act/Display
1--add
2--Act/Display
3--Display All, add, Actz/Display
4--Has query pages
10--Actz/Display, Correct, Display only
14--Actz/View, View All, Correct
15--When the page