表达者

As to dynamic modality, it can always be hypothesized in a conditional protasis, is always subject to tense distinction, and does not shift its orientation under the influence of interrogation.

受的影响；不会因为疑问而转移方向，指向受话。从功能上讲，机能情不表达说话对话语内容的任何度，而本身属于话语命题内容。