3 verses have
kaanoo
in Edition English Transliteration / Al-Qalam (The Pen)

68:33Kazaalikal azaab, wa la'azaabul aakhirati akbar; law kaanoo ya'lamoon

68:41Am lahum shurakaaa'u falyaatoo bishurakaaa 'ihim in kaanoo saadiqeen

68:43Khaashi'atan absaaruhum tarhaquhum zillatunw wa qad kaanoo yud'awna ilassujoodi wa hum saalimoon