Click Candidates for these kinds of absolutely specified segments (segments which has a narrow stage window) are multiply articulated stops, ejectives, implosives, clicks together with other ' multigesture ' segments. From the Cambridge English Corpus Restricted phonological behaviour can be a element of clicks in diachronic phonology. From the Cambridge https://alexisppnmi.worldblogged.com/32255932/an-unbiased-view-of-click