Here is a series of 19 combinations of Confusing Sounds in English:
Confusing sound 1: /iː/ and /I/
Confusing sound 3: /aː/ and /æ/
Confusing sound 4: /uː/ and /ʊ/
Confusing sound 5: /ɔː/ and /ʌ/
Confusing sound 6: /ɒ/ and /ɛ/
Confusing sound 7: /I/ and /aI/
Confusing sound 8: /ɑː/ and /ʌ/
Confusing sound 9: /ɒ/ and /iː/
Confusing sound 10: /b/ and /v/
Confusing sound 11: /w/ and /v/
Confusing sound 12: /ʃ/ and /tʃ/
Confusing sound 13: /ŋ/ and /n/
Confusing sound 14: /h/ vs. silent /h/
Confusing sound 15: /l/ and /r/
Confusing sound 16: /f/ and /p/
Confusing sound 17: /k/ and /g/
Confusing sound 18: /g/ and /w/