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 describe the relationship of words in a sentence. We use prepositions of location such as 'in', 'at' and 'on' to show the position of objects in the sentence. We use 'at' for specific ...

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 ...

In English, small but mighty words like "in," "on," "and," and "because" are essential for making our sentences clear and meaningful. Prepositions tell us the relationship between words, often ...