These structures are somewhat rooted in how Persian was spoken in the past. Essentially, they are: basam bud → man râ bas bud → barâ-ye man bas bud (it was enough for me) sakhtam bud → man râ sakht bud → barâ-ye man sakht bud (it was hard for me) khâbam gereft → man râ khâb gereft → khâb man râ gereft (sleep caught me = I felt sleepy) khâbam bord → man râ khâb bord → khâb man râ bord (sleep took me = I fell asleep) gerye'am gereft → man râ gerye gereft → gerye man râ gereft (cry caught me = I felt like crying / I began to cry) khande'am gereft → man râ khande gereft → khande man râ gereft (laughter caught me = I began to laugh / it made me laugh)

Actually as you said a structure for "bassam bud". Yes that structure is right, but note that this phrase is somehow a slang in Persian or when people talk to each other in an informal way. For example, when you would say: "bassame, man dige tahamole in vaziat ro nadaram" it means: It's enough! I can't tolerate this situation anymore" "sakhtam bud" means it was difficult for me. Again it is an informal term. For example: "emruz sobh, sakhtam bud az khaab paasham!". It means, "Today morning, it was difficult for me to get up!" 2- In relation to "khaabam gereft" and "khaabam bord", we usually use "khaabam gerft" for sometimes you become sleepy, but still awake, but "khaabam bord" means you definitely fell asleep. I should add "khaabam gereft" sometimes means "fell asleep" as well. 3- "khandam gereft" indicates that something made you laugh. To translate it, if we have an object in a sentence we can use it. For example: "man az harfe doostam khandam gereft", you can translate it as: " What my friend said, made me laugh"

Hi dear Shirley...Hope you are doing well... 1)بسم بود or برای من بس بود، برای من کافی بود means it was enough for me and i didn't need more... بست بود (برای تو بس بود، برای تو کافی بود) means it was enough for you and you didn't need more... بسش بود or برای او بس بود، برای او کافی بود means it was enough for her\him and he\she didn't need more... بس بودن means کافی بودن for example بس است means : it is enough 2) سخت بودن or دشوار بودن : it is hard for me این برای من سخت است سختم بود or برای من سخت بود or برای من دشوار بود means it was hard for me سختت بود or برای تو سخت بود or برای تو دشوار بود means it was hard for you.. سختش بود or برای او سخت بود or برای او دشوار بود means it was hard for her\him 3) خوابم گرفت means i wanted to sleep ...(for example i was tired and i needed to sleep, i felt sleepy) 4)خوابم برد means i fall asleep... 3)خندم گرفت means some thing made me laugh...i began to laugh 4) گریم گرفت means some thing made me cry....i began to cry