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.

Confused about prepositions? Learn how to use 'by,' 'until,' 'across,' 'over,' and 'into' correctly! Improve your English grammar with simple rules and examples. Loni Anderson's cause of death ...

Why are they so difficult? Often they aren't easy to translate, but even when there's a translation, it doesn't always apply, because English prepositions have lots of meanings and uses.

Move over, Oxford comma. There is some new grammar guidance about which everyone is talking - I mean, grammar guidance everyone's talking about. Here's how Merriam-Webster puts it. It is permissible ...