Translation of the Kinah אוי כי קינה רבת found on page 154 of the Or VaDerech siddur for fast days). It is said only when Tisha b'Av falls motzae shabbat.

Oy! Because we increase our dirges from the mouth of son and daughter, "may the pleasantness..." is not said on Motzai Shabbat.

At the time of Havdallah, the volume of the sound of moaning. How afraid and miserable is the desecrated Zion! How quickly confusion came and fire was sent against the Mikdash!

How quickly all song was turned into woe, and all dancing to mourning, and bitter eulogies mark our transition to the mundane and there is no separation between sacred and profane on the day I curled up, strangers inherited our inheritance.

this translation is not finished