for加时间段与时态并没有绝对的关系,而应该看与它连用的动词是否延续.
过去完成时:
He told me that he had been in Beijing for two years.发生在told之前,过去的过去
He worked in Beijing 2 months last year.过去的
I will stay in Beijing for 2 months.将来时
for加时间段与时态并没有绝对的关系,而应该看与它连用的动词是否延续.
过去完成时:
He told me that he had been in Beijing for two years.发生在told之前,过去的过去
He worked in Beijing 2 months last year.过去的
I will stay in Beijing for 2 months.将来时