In casual American English, "He isn't coming with us, is he?" sounds like "hee IH-zuhnt KUH-muhng wihth uhs ihz hee". Several things happen here, and the headline one is the Silent Schwa Before L/M/N/R: the unstressed vowel disappears and the consonant becomes its own syllable. Keep stressed words long, unstressed words short, and link the consonants forward into the vowels.
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What makes this sentence sound American.
In "isn't", the short unstressed vowel before "" disappears — the schwa is absorbed and the "" becomes the syllable nucleus on its own. This is called the Silent Schwa Before L/M/N/R, the kind of sound shift that makes everyday speech feel effortless. It comes out as IH-zuhnt.
What's happening in this sentence.
Small tricks that turn a textbook sentence into how an American actually says it.
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Each word has its own page with examples, common mistakes, and related words.
Common pronunciation mistakes in American English.
The textbook way isn't wrong — it's just not how anyone actually says it.
Inserting a vowel before the syllabic consonant.
In "isn't", the short unstressed vowel before "" disappears — the schwa is absorbed and the "" becomes the syllable nucleus on its own. Schwa is absorbed — consonant becomes the syllable nucleus.
Pausing between the words.
The "" at the end of "" flows directly into the vowel starting "" — the consonant migrates to the next word with no pause between. Final consonant "migrates" to next word — no pause between.
Leaving a gap between two vowels.
Between "" and "", a brief "" glide bridges the two vowels for smooth flow. A brief glide (y or w) bridges two vowels for smooth flow.
Pronouncing every consonant in the cluster.
The "" at the end of "" is dropped before the consonant starting "" — the surrounding consonants flow directly together — common in flowing natural speech; in careful or formal speech, the sound is often kept. The /t/ or /d/ at the end is dropped — surrounding consonants flow directly.