"If" and "whether" are often interchangeable, but sometimes using one or the other will change the meaning of your sentence. And if you've ever wondered why we say, "the exception that proves the rule" (like I did), you'll love this week's episode. Subscribe to the newsletter for regular updates.  Watch my LinkedIn Learning writing course. Join the conversation on Facebook and Twitter. Grammar Pop iOS game. Peeve Wars card game. Grammar Girl books. HOST: Mignon Fogarty VOICEMAIL: 833-214-GIRL (833-214-4475) Grammar Girl is part of the Quick and Dirty Tips podcast network. Links:  https://www.quickanddirtytips.com/ https://www.quickanddirtytips.com/podcasts https://www.quickanddirtytips.com/subscribe https://www.tiktok.com/@therealgrammargirl http://twitter.com/grammargirl http://facebook.com/grammargirl http://pinterest.com/realgrammargirl http://instagram.com/thegrammargirl https://www.linkedin.com/company/grammar-girl