1.If she were or was
Please explain the rules.
2. When do you use can not and cannot or everyone and every one?
Rules?
If she were . . .
http://www.englishclub.com/grammar/verbs-subjunctive.htm
2.
http://public.wsu.edu/~brians/errors/cannot.html
http://public.wsu.edu/~brians/errors/everyone.html