Common noun-plural slips

Ten minutes on the topic's own four common mistakes: a monosyllabic masculine noun left without its -ов- infix, a soft-stem monosyllabic noun given -и instead of -ев-, a feminine -а-noun left unchanged instead of swapped to -е, and човек forced into a regularized *човеци instead of људи. Build sentences around a garage and a hallway, catching each slip in turn, before the unit's own listening and reading put the whole topic to work.