i learned english for four years,but i have forgotten most o

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/10/04 19:24:49

i learned english for four years,but i have forgotten most of it.为什么不能用 have learned呢?
这句话前面的learned,为什么不能用 have learned呢?

现在完成时表示过去发生并且已经完成的动作对现在造成影响或后果,过去某一时间开始并一直持续到现在并且有可能还会持续的动作或状态.
由“but i have forgotten most of it”得知,他的学习并未持续,只是过去的的一个动作,所以应该用learned.

i have learned english for 3 years.这里哪里错 I have been studying English for four years.就for four years提 I have learned English for ten years中的learned为什么加ED 改写句子 I have learned English for six years.It is six years __ 把下面句子改为被动句I have learned English for about two years English I have learned English for eight years,I cant use it very we 同义句转换；I have learned English for five years.急! I [ ] English for three years 1.learn 2.learned 3.have learn 把下列句子改成被动语态：I have learned English for about two years 英语翻译是什么语态啊I have been learned english for 5 years.这句话和I have I did German at school but I have forgotten most of it. I have been learning english for years,but I still can’t com