# Is Conjunctive Normal Form or not?

I have one formula that I do not understand why it is CNF and one that is not CNF, namely.

1. p && !q (NOT NCF)

and

1. !!p(CNF).

According to the exercise where I found these examples, 1 is not CNF and 2 is CNF.

How can the first formula not be CNF, when for example p && q is CNF. If for example !!p is part of a formula we will translate it to p, how can we say that it is CNF?