Why do we care about grammar? -- Prescriptivism: grammar Shoulds and Shouldn'ts -- Descriptivism: how gramamr really works -- Re phrasing -- Fewer octopuses or less octopi? -- Between you and your pronouns -- Which hunting -- A(n) historical issue -- Funnest lecture ever -- Going, going, went -- Object lessons -- Shall we? -- Passive voice was corrected -- Only adverbs -- No Ifs, Ands, or Buts -- However to use However -- Squirrels and prepositions -- Stranded prepositions -- The dangers of danglers -- Navigating the choppy paragraph -- What part of speech is Um? -- Duck, duck, comma, and duck -- Its/It's confusing -- Trending language.