Cantonese → Mandarin Chinese
Mandarin Chinese uses 42 sounds. You already own 18 of them from Cantonese. The other 24 are the work — and 20 of those are the dangerous kind: close enough to something you already say that you will substitute them without hearing yourself do it.
The silent swaps
Your mouth has something close enough to reach for. These survive for years precisely because they sound right to you — the fix is hearing the difference first, not trying harder.
the move: close, but not identical
Mandarin Chinese: moon / month · written "yu + vowel", "ü + vowel"
Your /w/ is the one in wui2 會 (meeting).
the move: close, but not identical
Mandarin Chinese: all · written "ou", "iu"
Your /ou/ is the one in hou2 好 (good).
the move: near-close → close
Mandarin Chinese: one · written "i", "yi"
Your /ɪ/ is the one in sing1 星 (star).
the move: near-close → close
Mandarin Chinese: five · written "u", "wu"
Your /ʊ/ is the one in tung4 同 (same).
the move: close, but not identical
Mandarin Chinese: horse · written "a"
Your /aː/ is the one in saam1 三 (three).
the move: close, but not identical
Mandarin Chinese: thanks · written "ie", "üe", "ian (the a)"
Your /ɛː/ is the one in se2 寫 (to write).
the move: close, but not identical
Mandarin Chinese: woman · written "ü", "u after j q x y"
French u / German ü.
Your /yː/ is the one in jyu2 魚 (fish).
the move: close, but not identical
Mandarin Chinese: love · written "ai"
Your /aːi/ is the one in gaai1 街 (street).
the move: near-close → close-mid
Mandarin Chinese: I · written "o", "uo"
Your /ʊ/ is the one in tung4 同 (same).
the move: alveolar → alveolo-palatal
Mandarin Chinese: home · written "j"
Only before i/ü. Tongue flat, tip down.
Your /t͡s/ is the one in zung1 中 (middle).
the move: alveolar → alveolo-palatal
Mandarin Chinese: to go · written "q"
Your /t͡sʰ/ is the one in ceot1 出 (to go out).
the move: alveolar → alveolo-palatal
Mandarin Chinese: thanks · written "x"
Your /s/ is the one in sik6 食 (to eat).
the move: near-open → mid
Mandarin Chinese: door · written "en", "eng (the e)", "un (wen)"
Your /ɐ/ is the one in sam1 心 (heart).
the move: alveolar → retroflex
Mandarin Chinese: middle · written "zh"
Tongue curled back.
Your /t͡s/ is the one in zung1 中 (middle).
the move: alveolar → retroflex
Mandarin Chinese: to eat · written "ch"
Your /t͡sʰ/ is the one in ceot1 出 (to go out).
the move: alveolar → retroflex
Mandarin Chinese: to be · written "sh"
Your /s/ is the one in sik6 食 (to eat).
the move: plosive → fricative
Mandarin Chinese: good · written "h"
Rougher than English h — like German ach, lightly.
Your /k/ is the one in go3 個 ((classifier)).
the move: near-open → open, central → back
Mandarin Chinese: good · written "ao"
Your /ɐi/ is the one in sai3 細 (small).
the move: near-open → open, central → back
Mandarin Chinese: busy · written "ang (the a)", "ao (the a)"
Your /ɐ/ is the one in sam1 心 (heart).
Words you may say identically
Two or more Mandarin Chinese sounds landing on one sound of yours. Until the ear separates them, the mouth cannot — which is what the ear trainer is for.
Genuinely new
Nothing in Cantonese sits close to these. They sound foreign in your mouth — which is the good news: you can hear that you are not saying them yet.
person
Closest thing you own: — but approximant → fricative, palatal → retroflex.
two
Also the Beijing -r suffix: nàr 那儿.
Closest thing you own: — but close-mid → mid.
four
Not /i/! Hold the s and voice it.
Closest thing you own: — but close, but not identical.
ten
Not /i/! Hold the retroflex and voice it.
Closest thing you own: — but close, but not identical.
Rhythm and pitch
The layer spelling never records, and the one that makes a correct sentence still sound foreign.
| Cantonese | Mandarin Chinese | |
|---|---|---|
| Stress | No contrastive stress; prominence comes from particles and from changed tone (變調) lifting a syllable to tone 2. | Stress is a matter of length and clarity rather than pitch: a stressed syllable holds its full tone, an unstressed one goes neutral and short. |
What you have that Mandarin Chinese doesn't
24 sounds with no job in Mandarin Chinese. They are not mistakes — but they are where an accent leaks in, because a sound you own is easy to use when a hard one is due.
The honest caveat
This is a prediction from the shape of two sound systems, not a recording of you. It says what your inventory makes likely — it cannot know that your Cantonese has a regional variety that already owns one of these, or that you learned Mandarin Chinese from someone whose accent you copied. A teacher listening to you beats it. Use it to know what to listen for.
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