edilirken

In a sentence

• Kitap okunurken ışıklar kapatıldı.

  The lights were turned off while the book was being read.

  In this sentence, "okunurken" is the conjugation of "okumak" in passive voice ("to be read") with the suffix "-ırken", which expresses simultaneity, meaning "while being read."

• Toplantı düzenlenirken bazı aksilikler yaşandı.

  Some mishaps occurred while the meeting was being organized.

  The word "düzenlenirken" comes from "düzenlemek" (to organize) in its passive formation ("to be organized") with the simultaneity suffix, implying "while being organized."

• Yol yapılırken dikkat edilmesi gerekiyor.

  Attention needs to be paid while the road is being constructed.

  Here, "yapılırken" uses "yapılmak" in its passive form ("to be constructed") with the simultaneity suffix, indicating "during construction."