https://www.sanskritgurukul.in/%e0%a4%b9%e0%a4%b8%e0%a5%8d-%e0%a4%b9%e0%a4%b8%e0%a4%a8%e0%a4%be-laugh-dhatu-roop/
हस्: (हसना) धातु रूप लट् लकार/ laugh dhatu roop laat lakar( present tense)