Think Isn't Fink: Meet the TH Sound
Polish speakers often swap English th for an f sound — a distinctive pattern that's easy to fix once you know the trick.
Polish doesn't have the 'th' sounds found in English words like 'think' or 'this', so many Polish speakers naturally reach for the closest sound available, which is often /f/ rather than the more common substitutes other learners use. That means 'think' can become 'fink' and 'thin' can become 'fin' — small changes that shift the meaning entirely for an English listener. The real 'th' sound is made by placing the tip of your tongue lightly between your top and bottom teeth and pushing air through gently, not by touching your lip to your teeth like /f/ does. Try this: put your tongue tip between your teeth and blow softly — you should feel air passing right over your tongue, with your lips staying relaxed and open, no lip-to-teeth contact at all. Practice think/fink, thin/fin, and thank/frank for two minutes, checking your tongue position each time in a mirror. This is a very learnable sound with steady practice — stick with it and you'll hear real progress soon.
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Sources (1)
- Why you sound Polish: distinct features of Polish-accented English — Accent Amazing — 2025
- Polish speakers consistently substitute the English /θ/ sound with [f], rather than the more common ESL error of using [s].
- Poles misplace word stress because they apply their language's predictable penultimate-syllable rule to English, which has unpredictable stress patterns.
- Polish speakers produce a staccato rhythm by equalizing vowel lengths, as Polish is syllable-timed while English is heavily stress-timed.