Why 'Think' Isn't 'Sink' (or 'Zink')

English has a sound made by putting your tongue tip lightly between your teeth and pushing air through - the sound at the start of 'think' and 'this.' German has no equivalent, so speakers often swap in 's,' 'z,' 'd,' or 't' instead, turning 'think' into 'sink' or 'this' into 'dis.' This substitution is one of the most consistently documented patterns in German-accented English. Try it: say 'think,' 'thumb,' and 'bath,' placing your tongue tip gently between your top and bottom teeth and blowing air past it - don't touch your teeth to your lips like for 'f.' Today, spend two minutes in front of a mirror watching your tongue peek out on 'th' words: 'think,' 'three,' 'bath,' 'mouth.' It feels strange at first, but your mouth adjusts quickly with repetition. This one small habit change makes a noticeably big difference in how natural you sound!