How do you say paraskavedekatriaphobia?

There's no single universally agreed-upon pronunciation of "paraskavedekatriaphobia." It's a long and complex word, and pronunciation will vary depending on accent and individual interpretation. However, a generally accepted approximation, breaking it down phonetically, would be something like:

par-uh-skay-veh-deh-kat-ree-uh-foh-bee-uh

* par-uh: Like "par" as in "pair" followed by a short "uh" sound.

* skay-veh: "skay" rhymes with "sky," and "veh" sounds like "veh" in "vehicle".

* deh-kat-ree: "deh" as in "debt", "kat" as in "cat", "ree" as in "tree".

* uh-foh-bee-uh: "uh" as in "about," "foh" rhymes with "go," and "bee-uh" as in "be" + "uh".

Keep in mind that this is just a guideline. The emphasis and precise sounds might vary slightly. If you want to be sure, you can try looking up the word on a pronunciation dictionary website or app like Forvo or Merriam-Webster.