Research on impersonal passive in Indo-European

这个研究项目的主题是印欧语言中的非个人化被动语态。被动句一般只能由带有宾格宾语（及物动词）的动词组成，但在一些语言中，如梵语、拉丁语或现代德语，它们也可以由带有不及物动词的句子组成，并形成一种特殊的句子类型，没有主格主语，如非人称被动句。本研究解释了这种传统语法无法厘清的非人格化被动语态语法现象的形成、发展和衰落过程，并将研究成果发表为《梵语语法基础》和《历史交际理论导论》。

The theme of this research project is the impersonal passive in Indo-European languages. Passive sentences can be generally formed exclusively from sentences of verbs with accusative object (transitive verbs), but in some languages as Sanskrit, latin or modern German they can be formed also from sentences with intransitive verbs and into a special sentence type without nominative subject as impersonal passive. This research explained the process of formation, development and decline of this grammatical phenomen of impersonal passieve that the traditional grammar could not make clear and published the results as "Elementary Sanskrit Grammar" and "Introduction to the historical communication theory".