[家庭辅教] 一个比较清晰的英语时态例子

帮助孩子们理解时态用的一个例子列表：

一般现在时  I do my homework.
一般过去式  I did my homework yesterday.
一般将来时  I will do my homework tomorrow.

现在进行时  I am doing my homework now.
过去进行时  I was doing my homework at this time yesterday.
将来进行时  I will be doing my homework at this time tomorrow.

现在完成时  I have done my homework by now.
过去完成时  I had done my homework before yesterday.
将来完成时  I will have done my homework by tomorrow.

现在完成进行时  I have been doing my homework for two hours.
过去完成进行时  I had been doing my homework for two hours when my father came in.
将来完成进行时  I will have been doing my homework for two hours when my father comes in tomorrow morning.