4 verses have
laakinna
in Edition English Transliteration / Al-Qasas (The Stories)

28:13Faradadnaahu ilaa ummihee kai taqarra 'ainuhaa wa laa tahzana wa lita'lama anna wa'dal laahi haqqunw wa laakinna aksarahum laa ya'lamoon

28:45Wa laakinnaa anshaanaa quroonan fatataawala 'alaihimul 'umur; wa maa kunta saawiyan feee ahli Madyana tatloo 'alaihim Aayaatinaa wa laakinnaa kunnaa mursileen

28:56Innaka laa tahdee man ahbata wa laakinna laaha yahdee mai yashaaa'; wa Huwaa'lamu bilmuhtadeen

28:57Wa qaalooo in nattabi'il hudaa ma'aka nutakhattaf min ardinaa; awalam numakkkil lahum haraman aaminany yujbaaa ilaihi samaraatu kulli shai'ir rizqam mil ladunnaa wa laakinna aksarahum laa ya'lamoon