New Thinking about Part of Speech System in Modern Chinese

To divide the parts of speech,we should firstly divide it according to the grammatical function,and the level of the word class should be also considered.Firstly,we can divide the word class into two parts notional words and form words,the standard is if the word can be syntactic component or not.Secondly,notional words include three parts such as totally independent words,half independent words and combined words,these parts are divided by the dependence of using and the ability of combination.Totally independent words have only one member,it's interjection.Half independent words also have one member,it's echoic words.Combined words include nominals,predictions,modificatory words and pronouns.Nominals include nouns and numerals.Predictions include verbs,adjectives and modal words.Modificatory words include attributive words and adverbs.Pronouns include fungible nominals,fungible predictions and fungible modificatory words.Form words can be divided into prepositions,conjunctions,auxiliary words and measure words.