Let $p,q,r,$ and $s$ be propositional variables. Which of the following expressions would NOT be formulas in conjunctive normal form?

$(p^2$notq${)}^n$otr

$p^{vv}(q^r)$

$p^2(q^r{)}^{2}s$

$(p^2{q}^{2}r{)}^{-b^2-q^2-r}$