Why you cannot hear where one word ends and the next begins
not at all - no-ta-tall
How to use this sheet
In writing, spaces show where words end. In speech there are none: a fluent speaker produces one continuous stream, and its syllables do not respect the boundaries of the written words. The two versions in the line above are the same three words; the second shows how the stream is re-cut, with each final consonant starting the next syllable. The table collects the four regular processes behind this: consonants migrating forward onto a vowel, glides inserted between vowels, /t/ and /d/ deleted inside consonant clusters, and sounds altered or fused by a neighbour. None of it is careless speech; it is the system, and it is why a sentence you could read easily can be impossible to cut up by ear.
| Written | Said at speed | What happened |
|---|---|---|
| turn it off | tur-ni-toff | each final consonant links forward onto the next vowel |
| an apple | a-napple | final /n/ links forward; the boundary moves |
| not at all | no-ta-tall | both /t/ sounds link forward; three words, one stream |
| I agree | I-y-agree | a /j/ glide is inserted between the vowels |
| go on | go-w-on | a /w/ glide is inserted between the vowels |
| next week | nex-week | /t/ deleted inside the consonant cluster |
| old man | ol-man | /d/ deleted between consonants |
| must be | mus-be | /t/ deleted before another consonant |
| ten pounds | tem-pounds | /n/ becomes /m/ before the lip sound /p/ |
| good boy | goob-boy | /d/ takes the lip position of the /b/ that follows |
| don't you | don-chu | /t/ + /j/ fuse into a ch sound |
| would you | wou-ju | /d/ + /j/ fuse into a j sound |
In use
Turn it off and put it away. The old man must be about eighty. Don't you want to go on without us?
Watch out
It was not funny a tall.
The incorrect sentence shows the classic mis-segmentation: the final /t/ of one word has linked forward onto the vowel that follows, and the listener has cut the stream in the wrong place, inventing an adjective that was never said. Learners do this constantly, and then blame their vocabulary: the words feel unknown when in fact every one of them is familiar. The error is the assumption underneath, that speakers separate their words and that a boundary you cannot hear means a word you do not know. Fluent speech contains no gaps whatsoever. When a stretch of speech resists you, do not reach for the dictionary first; try re-cutting the stream, moving each final consonant onto the vowel after it, and the familiar words usually reappear.