What is a contrapositive, and what is the contrapositive of this statement? "if your eyes are green, then it's not common"?

 It is common that your eyes are not green

Step-by-step explanation:

Given an "if p, then q" statement  (notation: p → q)

the contrapositive is " if not q, then not p"  (notation: ~q → ~p)

In the given statement,

So,

Therefore, the contrapositive should be:

If it is common , then your eyes are not green.

But grammatically it sounds better to say,

"It is common that your eyes are not green"

i honestly dont know