I have the following statement:
I find it necessary for you to graduate from school.
Though, I can rephrase it:
I think it best for you to graduate from school.
I read about
"for-to-infinitive clauses" and suppose my second sentence to be correct. Why should I write
"...it best..." instead of
"...it is best..."? It just boils down to the rule: I mean it's so because it's so.