2019年12月英语六级语法常考知识点：动词时态
时间：2019-11-27 来源：文都网校 浏览：语法是英语学习的基础，也是英语六级考试的基础，掌握英语六级语法对考试非常重要，下面文都网校小编给各位小伙伴整理了六级语法常考知识点，请参考学习。
1)现在完成进行时态 (have/has been + -ing 分词构成): 动作或状态从过去某时开始,继续到现在,可能继续下去,也可能刚刚结束.
I’ve been writing letters for an hour.
I’ve been sitting in the garden.
2)过去完成进行时(由had been + ing分词构成): 过去某个时刻以前一直在进行的动作
I’d been working for some time when he called.
We had been waiting for her for two hours by the time she came.
3)将来完成进行时: 将来某个时刻以前一直在进行的动作.
By next summer, he will have been working here for twenty years.
In another month’s time she’ll have been studying here for three years.
4)将来完成时(由shall/will have + 过去分词构成): 将来某时会业已发生的事.
I shall have finished this one before lunch.
They’ll have hit the year’s target by the end of October.
以上就是文都网校四六级小编为大家提供的英语六级语法常考知识点。考生们想了解更多四六级备考课程、备考资讯，请点击文都网校四六级资讯站查询!有问题找文都☞☞☞详情咨询入口>>>
