for a long time 的时态搭配

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/04/28 14:46:36

for a long time 的时态搭配
for 介词引导的时间状语常搭配完成时态或过去时态,请帮忙详细解释一下以下各句中的的时态使用的要求.
1.---Did Alan enjoy seeing his old friend yesterday?
--- Yes,he did.He hadn't seen his old friends for a long time.
2.I worked in a foreign trde company for five years.Still,I don't regret having given up the well-paid post.

for a long time 通常用于现在完成时或过去完成时.肯定句中谓语动词要用延续性的.具体分析如下：
1.本句中,答句的时态是属于“过去的过去”,故用过去完成时.
2.根据句意,说话者已不在原来的公司工作,且已在新公司工作一段时间了.故前半句的时态也是“过去的过去”.某些时候,某些延续性动词,用一般过去时（如本句）来表达过去完成时,用一般现在时来表达现在完成时.本句I worked （=had worked）in a foreign trde company for five years.
再如：The fire lasted 2 hours yesterday.(昨天的火灾持续了2个小时).

for a long time 的时态搭配 for a long time 和after搭配,得用什么时态? for long与for a long time的区别请问He has been waiting for his brother for a long time.是什么时态, i haven't heard from her for a long time什么时态?haven't heard 换 I haven't seen you for a long time 是什么时态不是现在完成时吗? i haven't heard from her for a long time什么时态? Mary and Ktty_____(know)each other for a long time.横线上添什么时态时态题：I_(not see)my friend,tom,for a long time "Darling!for a long long time love! at a long time和for a long time的区别,请详尽回答 last for a long time 还是last a long time?