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.
受到时态的影响;不会因为疑问而向,指向受话。从功上讲,态不表达说话对话语内容的任何态度,而本身属于话语命题内容。