• Tony n’est pas seulement un excellent professeur, c’est aussi une scientifique de grand talent.

When I see the "pas seulement ~~~ aussi", it is almost always about the affirmative statement: "Tony is A, and B". But how can I turn this phrase into a negative statement, such as,

• Tony not only doesn't like playing with children in his neibourhood, but he also doesn't take a good care of his own children as well.

I can't imagine using "pas seulement pas" for "not only not".

• Tony n’est pas seulement un excellent professeur, c’est aussi un scientifique de grand talent.

When I see the "pas seulement ~~~ aussi", it is almost always about the affirmative statement: "Tony is A, and B". But how can I turn this phrase into a negative statement, such as,

• Tony not only doesn't like playing with children in his neibourhood, but he also doesn't take a good care of his own children as well.

I can't imagine using "pas seulement pas" for "not only not".