Its irregular verbs can teach us a lot about how languages evolve. ... get, make, go, know, take, see, come, and think. All irregular. But irregulars are a tiny fraction of all verbs.

This wonderful lesson in irregular verbs is from the song “You’re a Mean One, Mr. Grinch” in the animated adaptation of Dr. Seuss’ “How the Grinch Stole Christmas!” ...

Michael Rosen and Dr Laura Wright explore irregular verbs with Dr Marcelle Cole, and a contribution from Steven Pinker. What are they, where did they come from, and why do they exist in English?