NPR's Ari Shapiro speaks with John McWhorter, Columbia University linguist and New York Times columnist about the recent Merriam-Webster declaration that English sentences may end with prepositions.

PREPOSITIONS form a pretty exclusive club. Unlike nouns and verbs, of which there are squillions each, Wikipedia lists over a hundred modern one-word prepositions, a few two-word ("next to") and three ...

A handy list of links to resources for teaching prepositions Stage 2: Your name and where you're from. Grammar Tip: Articles and prepositions with countries. 8 articles with audio and quizzes to test ...