has been interesting 是不是现在完成进行时,要看这个 interesting 是什么词——如果它是动词 interest 的现在分词呢?还是已经形容词化的形容词 interesting。
1. 如果 interesting 是动词 interest 的现在分词(此时它的后面应该有宾语,因为用作动词的interest 是及物动词),则它是现在完成进行时。如:
The play has been interesting us all the time.
2. 如果 interesting 已经形容词化,变成了形容词,则它是现在完成时。如:
It’s been interesting to talk to you. I’ve really enjoyed our conversation.