俄语的非宾格动词有形态标志，并且涵盖范围较广，“感觉”和“言说”类非使役性动词也可以有非宾格形式。

The Russian unaccusative verbs have the special morphologic marker and they are used very extensively. The "sense" and "speech" verbs also have their unaccusative forms.

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但是目前的使役研究缺乏系统性、全面性，导致使役尚未作为一个语法范畴建立起来。

However, the current causative research is neither systematic nor comprehensive. As a result, causative phenomenon has not been established yet as a grammatical category.

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