3、一般将来时
3.1、will/shall do: Next month, my sister will be nineteen. I shall/will return you the book tomorrow.
3.2、be going to do: The wall is going to be painted green. It is going to rain.
3.3、be to do表明按计划要发作的事: We are to meet at the school gate.
3.4、be about to do行将(正要)做某事: Autumn harvest is about to start.
4、一般曩昔将来时
He said that he would get married soon. I asked him when he would come here again.
5、现在进行时
5.1、表明说话时,或现阶段正在进行的动作或发作的状况