Confusable Sounds
Master the English sound pairs learners most often mix up — Ship/Sheep, Pen/Pin, Thin/Sin, V/W, R/L and more. Each module drills one pair until you can produce the distinction reliably.
Module 1Ship vs sheep
Short /ɪ/ is relaxed and short; long /i/ is tense and held. Many learners merge them.
Module 2Pen vs pin
/ɛ/ is more open than /ɪ/. Some Southern speakers merge them before nasals.
Module 3Bad vs bed
/æ/ is lower and more open than /ɛ/. Critical for words like 'bad' vs 'bed'.
Module 4Cut vs cot
/ʌ/ is central and short ('cut'); /ɑ/ is back and open ('cot'). Dock vs Duck.
Module 5Cot vs caught
Many GenAm speakers merge these (cot-caught merger). When distinct, /ɔ/ is more rounded.
Module 6Pull vs pool
/ʊ/ is relaxed and short; /u/ is tense and held with rounded lips.
Module 7Wait vs wet
/eɪ/ is a diphthong gliding to /ɪ/; /ɛ/ is a pure short vowel.
Module 8Boat vs bought
/oʊ/ glides from mid to high-back; /ɔ/ is a steady open-mid back vowel.
Module 9Thin vs sin
/θ/ is tongue-between-teeth (interdental); /s/ is tongue-behind-teeth (alveolar).
Module 10Thin vs fin
/θ/ uses the tongue; /f/ uses the lower lip against upper teeth. Common substitution.
Module 11Then vs den
/ð/ is a soft voiced interdental fricative; /d/ is a stop.
Module 12Bus vs buzz
Voiceless /s/ vs voiced /z/. Word-final /z/ is often devoiced by learners.
Module 13Vine vs fine
Voiced /v/ vs voiceless /f/. Both are labiodental — only voicing differs.
Module 14Ship vs chip
/ʃ/ is a continuous fricative; /tʃ/ starts with a stop then releases into /ʃ/.
Module 15Vine vs wine
Indian-language speakers often merge /v/ and /w/ into a single labiodental approximant.
Module 16Rice vs lice
East-Asian languages collapse /r/ and /l/. /r/ uses curled tongue tip; /l/ touches the ridge.
Module 17Think vs tink
European languages without /θ/ often substitute /t/. Tongue must touch upper teeth, not the ridge.
Module 18Then vs zen
/ð/ often replaced with /z/ by speakers whose L1 lacks interdentals.
Module 19Sheep vs ship (collapse risk)
Spanish, Portuguese, Greek, and Arabic speakers tend to collapse /i/-/ɪ/ to a single /i/.
Module 20Ban vs van
Spanish merges /b/ and /v/. English /v/ requires lower-lip-on-upper-teeth contact.
Module 21Measure vs major
/ʒ/ is a soft fricative; /dʒ/ starts with a stop. Common confusion between rare /ʒ/ and the more familiar /dʒ/.