現在完成進行式的謂語動詞構成 I/ we/ you/ they have been working he/ she/ it has been working 現在完成進行式的用法 (一)表示從過去某時開始一直持續到現在的動作,並且還將持續下去。 The Chinese have been making paper for two thousand years.
www.wawawa.com.tw