基本与现在完成时相同,但是现在完成进行时只能表示仍然持续的概念
have/has been +-ing 分词
He has been working for us for ten years.=He has worked for us for ten years.
基本与现在完成时相同,但是现在完成进行时只能表示仍然持续的概念
have/has been +-ing 分词
He has been working for us for ten years.=He has worked for us for ten years.