This question originally appeared on Quora. Answer by Marc Ettlinger, Ph.D., linguistics, U.C. Berkeley: English speakers don’t actually differentiate “th” and “f” all that well. Indeed, in certain ...
To play this video you need to enable JavaScript. Do you have a question you want us to answer? You can send us your questions to learningenglish@bbc.co.uk 1. There are two sounds that we often write ...