Stem لَسْ has 5 unique word forms and appears 6 times in the Quran.

Word Translation Occurrences
لَسۡتَ <span class='v'>You</span> <span class='v'>are</span> <span class='v'>not</span>, You are not 4
أَلَسۡتُ Am I not, <span class='v'>Am</span> <span class='v'>I</span> <span class='v'>not</span> 2
لَسۡتُمۡ <span class='v'>You</span> <span class='v'>are</span> <span class='v'>not</span>, You are not 2
لَسۡتُنَّ <span class='v'>You</span> <span class='v'>are</span> <span class='v'>not</span>, You are not 2
وَلَسۡتُم <span class='v'>while</span> <span class='v'>you</span> <span class='paren'>(would)</span> <span class='p'>not</span>, while you (would) not 2