這是 Indirect speech 或是叫 Reported speech could 在這是 can 的 indirect... can -> could DIRECT: I can dance! INDIRECT: He thought he could dance. will -> would...
先針對 Indirect speech acts 提供一個語言學討論檔供你參考： http://www.uijin...as if the utterance was a direct speech act instead of an indirect speech act used as a request for directions. ...