 Since these two sounds are completely conditioned by their environments, they can be considered allophones of and .This is especially clear from verb roots in which one consonant is realized as one or the other allophone depending on what precedes it.For example, for the verb meaning "cry", which has the triconsonantal root |bky|, there are forms such as ('to cry') and ('he cried'), and for the verb meaning 'steal', which has the triconsonantal root ||, there are forms such as ('they steal') and ('he steals').