sentences:  Such work suggests that these are not two distinct mechanisms for yes/no question formation, but instead, that a subject-object inversion construction simply contains a special type of silent question marked complementizer.This claim is further supported by the fact that English does exhibit one environment — namely, embedded questions — that utilizes the overt question marked C “if”, and that these phrases do not employ subject-auxiliary inversion.In addition to this, some compelling data from the Kansai dialect of Japanese, in which the same adverb can evoke different meaning depending on where it is attached in a clause, also points towards the existence of a Null C. For example, in both complementizerless and complementizer environments, the adverbial particle "dake" (“only”) evokes the same phrasal meaning