2 verses have
“كان”
in Edition Simple Clean / Al-Ma'aarij (The Ascending Stairways)
4:70تعرج الملائكة والروح إليه في يوم كان مقداره خمسين ألف سنة
44:70خاشعة أبصارهم ترهقهم ذلة ۚ ذلك اليوم الذي كانوا يوعدون
Support Ayat Al Quran
Those who spend their wealth by night and day, privately and publicly, will receive their reward from their Lord. They have nothing to fear, nor shall they grieve.
The Holy Quran · Al-Baqara (The Cow) · 2:274