Complex sentence: All these three solutions, according to Jasanoff, present massive problems, not the least of which being that the way verbs are distributed between the two Hittite conjugations seems arbitrary, by and large, compared to the other IE daughter languages.
Split into simpler sentences: All these three solutions, according to Jasanoff, present massive problems. Not the least of them being that the way verbs are distributed between the two Hittite conjugations seems arbitrary, by and large, compared to the other IE daughter languages.