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This paper examines the characteristic of English-speakers’ sensitivity to the degree of association between phonemes at the sub-syllabic level. One major finding of the current study is that, replicating findings from previous studies (e.g., Treiman , Kessler, Knewasser, Tincoff, and Bowman, 2000), speakers of English are sensitive to the difference in phonotactic probabilities governing the vowel and coda (VC) sequences of English CVC words. Wordlikeness judgments were higher for English CVC nonwords that contain more probable VC than less probable VC sequences in English. A second independent finding of the current study is that speakers of English have developed a similar sensitivity in the case of sub-syllabic dependencies for segment sequences other than vowel-coda sequences (that have been claimed to form ‘rime’ in the traditional literature). That is, English-speaking subjects judged nonce CVC words containing a relatively highly probable onset-vowel sequence to be better sounding English words than those containing a low probability onset-vowel sequence. The current finding indicates that, contra what the traditional onset-rime model of English syllable structure would predict, English speakers are sensitive to the difference in phonotactic probabilities governing segment sequences that cross the rime constituent. The implications of these findings for the representation of the internal structure of English syllables are discussed.