okay no problem
we will find this question in the bac like i guess
it's long lesson this one
what do you should know is
to get an ajdectif rom a noun
we add a suffix or preffixes
and some times we don't add any thing
to know more
look at the like below
https://cutewriting.blogspot.com/2008...form-noun.html
if u don't understand
i 'll clairfy it to you