having done和doing的区别
having done和doing的区别
having done表示完成，doing表示进行；
having done为现在分词doing的完成时形式，表示动作发生在主句动作之前。
doing为现在分词，表示动作与主句动作同时发生或进行，是主动形式。
True guilt is characterized by a readiness to make atonement for having done wrong.
真正的内疚表现为愿意弥补所犯的过错。
only when they got to a safe place, could we regard ourselves as having done our duty.
只有当他们到达安全地方的时候，我们才能认为自己尽到了责任。
I\'m doing some research on the subject.
我正就这一课题进行研究。
How will the company be doing ten years further on?
十年以后公司的情况将如何呢？