A preposition is a word that tells you where or when something is in relation to something else. Examples of prepositions include words like 'after', 'before', 'on', 'under', 'inside' and 'outside'.

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 ...

Australia is an island country, which means that it is surrounded by water. The coastline of Australia is over 30,000 kilometres long. In this lesson, you will test your understanding of prepositions ...

On the Internet, that storehouse of dubious advice, you can still find statements about grammar and usage like this one: “One is still officially supposed to avoid ending sentences with prepositions.

In each item below, the sentence contains a highlighted conjunction expressing a time relationship, followed by a preposition in parentheses. In the blank box under each item, rewrite the sentence ...