had加動詞過去式是過去完成時。
had：
v.有持有佔有由…組成顯示出(性質、特徵)
有時代替 if 用於從句句首，表示某種情況可能發生但並未發生
have的過去分詞和過去式 擴展資料
Number Ten had nothing to say on the matter.
唐寧街十號對此不作評論。
I went home directly I had finished work.
我一干完活就回家了。
We had relatively few applications for the job.
申請我們這項工作的'人相對較少。
The government had to take emergency action.
政府只得採取緊急措施
