az kalsın= كاد Mert az kalsın bisikletten düşüyordu كاد مرت ان يسقط من الدراجة الهوائية

If smt was very close to happen, but i did not we use 'az kalsin' For example: Mert az kalsın bisikletten düşüyordu.: mert was about to fell from bycle. Araba az kalsın çarpacaktı. : the car was about to crash. Az kalsın donuyorduk.: we were about to freze.