Alveolar are allophones of before . Denti-alveolar is an allophone of before dental consonants. has been traditionally classified as a trill, with a tap supposedly only occurring as an allophone or in fast speech. However, more recent studies show that is predominantly realized as a tap, sometimes as an approximant or a fricative, but almost never as a trill. One study found that in an intervocalic context a trilled occurs in less than 3% of cases, while a tapped occurred in approximately 95% of cases. Another study by the same researcher showed that in a postconsonantal position, is realized as a tapped in 80-90% of cases, while trilled occurs in just 1.5% of articulations.