have⼀has+been+since后面跟哪三种？

2025-06-24 09:36:18

推荐回答（2个）

回答1：

1.一般结构为 since + 一般过去时的句子，如：I have watched TV since I got home.
2.since + 一段时间+ago，如：I have come back since ten days ago.
3.since+过去的时间点，如：She has worked as a nurse in that hospital since 1998.

回答2：

Have has been加since，加时间点since后面的时间，一个是过去的时间点，一个是一般过去时的句子。He has been here since he was three years old，从他三岁的时候起，他就在这儿啦。He has been here since three years ago，从三年前起他就在这儿啦。另外就是for 加一个时间段，he has been here for ten years ，他在这儿十年了。