相同：
1：現(xiàn)在完成時（have done)和現(xiàn)在完成進(jìn)行時(have been dong）都可以表示從過去某一時刻開始一直延續(xù)到現(xiàn)在的動作.Example:
I have worked in this school since 2000.
I have been working here since 2000.
2:現(xiàn)在完成時和現(xiàn)在完成進(jìn)行時都可以表示一段時間內(nèi)延續(xù)的動作.Example:
Mr.Smith has lived here for 20 years.
Mr.Smith has been living here for 20 years.
以上句子用現(xiàn)在完成時和現(xiàn)在完成進(jìn)行時,含以上沒區(qū)別,兩種時態(tài)可互換.但兩種時態(tài)也存在用法上的差別.