In the Turkman Turkish, the word "hem" serves as the conjunction and the expletive. Today in the written language there are also "-am/-em" forms in which the consonant "h-" is deleted in relation with the palatal harmony. In fact, this usage was in the colloquial language in the beginning and passed on to written language afterwards. There is not any specific rule in terms of spelling for the usage of the hem or -am/-em. Although there is not a specific system for this dual usage, in some cases the -am/-em formats are more preferred today in standard Turkmen Turkish.