Have they not seen, in their travels to Syria and to other places, how many, (kam is predicative [and not interrogative], meaning ‘many’) a generation, [how many] a community of past communities, We destroyed before them; We established them, We assigned them an [established] place, in the earth, through strength and abundance, as We have not established, [as] We have [not] assigned, you (there is a shift in the address here from third person [to second]); and how We unleashed the heaven, the rain, upon them in torrents, one torrent after another, and made the rivers to flow beneath them?, beneath their dwellings. Then We destroyed them because of their sins, because of their denial of the prophets; and We raised up after them another generation.