Learn Turkish: Eleştirmenin üslubu hakkında ne düşünüyorsunuz? - What do you think about the critic's style?

Yes, the -men or -man suffix is attached to verbs or nouns to describe a person who performs a specific job or action. Just like öğretmek (to teach) becomes öğretmen (teacher), eleştirmek becomes eleştirmen (critic).

Why is the possessive form of üslup written as üslubu rather than üslübü?

Üslup (style) is an Arabic loanword. Loanwords often break standard Turkish vowel harmony rules. While the final p softens to b as expected, the suffix vowel remains u, resulting in üslubu.

I learned that hakkında (about) requires the genitive case, like in benim hakkımda (about me). Why isn't there an extra genitive suffix on üslubu?

Hakkında only requires the genitive case when it follows a pronoun (like benim, senin, or bunun). When it follows a regular noun or an entire noun phrase, like the possessive compound eleştirmenin üslubu (the critic's style) in this sentence, the phrase simply remains in the nominative (bare) case.

How could I use this lesson's double negation pattern to say "It's not that I don't think about the critic's style"?