Often used, often confused. Here's some guidance and insight.
Or both? Or neither?
What's with his feathered cap?
An old-fashioned rule we can no longer put up with.
Here's the lowdown on what may be the most confusing pair of words in the English language.
Editor Emily Brewster clarifies the difference.
Many of today's grammar rules can be traced to the opinions of one 18th century writer.