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 ...

The prepositions 'in', 'on' and 'at' can be useful when we're talking about time and location. Read on to learn more about when to use them. We use ‘at’ when we’re talking about a very specific period ...

To help remember the dative prepositions, sing them to the first two lines of the Christmas carol Good King Wenceslas. Remember that King Wenceslas first set out on the ‘date’ (= dative) of the feast ...

If dual-case prepositions describe movement from one place to another, they are followed by the accusative case. Otherwise, they take the dative. Ich stecke die Schuhe unter das Bett. – I put the ...

In this lesson, we look at how to use the tricky prepositions for, since and ago. For is used for a period of time that something goes on. I’ve been working for hours. I’ll do the job for a year. I ...

Over the years, I’ve seen a lot of “most common grammar mistakes” lists on the internet. And, over the years, I’ve learned they’re almost always wrong. That is, in every published list of the grammar ...

An authority on the English language has set us free from the tethers of what many have long regarded as a grammatical no-no. Or has it? The answer depends on how you side with a declaration from ...