A liaison consonant is a consonant resulting from the spreading of the final consonant of a syllable to the initial position of an onsetless particle. This study investigated whether such derived consonants are recognized by native speakers of Taiwan Min and Taiwan Hakka. Results of a concept formation and a syllable inversion experiment with Taiwan Min subjects are taken from Wang & Kao (2004). A syllable inversion experiment was done with Taiwan Hakka subjects. The results showed variant treatments by users of different languages. Taiwan Min speakers tended not to regard the liaison consonants as existing in the particle, while Taiwan Hakka speakers tended to accept their existence. And within Hakka, speakers using Sixian variety tended to accept the consonants more than Hailu speakers. We argue that such gradient performances show different degrees of morphologization of the consonants in the particles.