There's no need to lard a modern speech with classical particles.
Tips
history
Recorded in the Song-dynasty work 《湘山野录》 by Wen Ying: 之乎者也,助得甚事?('What good are zhi-hu-zhe-ye?') Reportedly mocking a scholar's love of classical filler — a quip that has stuck for nearly a thousand years.
memory
All four characters (之, 乎, 者, 也) are real, working particles in Classical Chinese — strung together they signal 'listen to this guy talking like a Han-dynasty scholar.' Lu Xun's Kong Yiji (孔乙己) is the iconic literary user.