Your Pain Is Our Pleasure
24-Hour Proofreading Service—We proofread your Google Docs or Microsoft Word files. We hate grammatical errors with passion. Learn More
August 15, 2009
Total number of comments
Total number of votes received
If they're both in use, then they're both correct - and you interchange them for stylistic purposes.
A passage by David Crystal from 'Words Words Words'; "The choice between alternative noun plurals is a fairly easy one. Is it formulas or formulae? Cactuses or cacti? Referendums or referenda? The regular -s ending is usually the more informal and colloquial. The classical ending is the more technical, learned, or formal. If I am a plant amateur, I will probably say cactuses when I see more than one of them. But if I am a cactus aficionado, I will almost certainly say cacti."
©2018 CYCLE Interactive, LLC.All Rights Reserved.