“反事实假设复句”是与客观事实相反的假设,表示“由该假设而产生不同结果”的假设复句。已然成立的客观事实用PであったからQ这种因果关系的复句来表达。“反事实假设复句”的偏句提出与“现在状况”或“过去事实”明显不同的或者是截然相反的假设。本文尝试从过去、 “Counterfactual hypothetical complex sentence ” is an assumption that is contrary to the objective fact, and the hypothetical complex sentence indicating “different result from this hypothesis ”. The already established factual fact is expressed in the complex sentence of causal relations such as P で あ っ た か ら Q. The partial clause of the “counterfactual hypothetical complex sentence” sets out a rather different or entirely contrary assumption from the “present situation” or the “past fact.” This article attempts from the past,