Fewer Octopuses or Less Octopi?

S1, E5: Investigate countable and uncountable nouns, and learn the details of how we use them with modifiers such as fewer" and "less." Then delve into irregular plurals in English, observing the variety of ways they are formed. Finally, learn about collective nouns and the question of subject-verb agreement, as in, "there's/there are a few reasons."