用法如下:
。1)was 用作系動(dòng)詞,后接名詞,形容詞,介詞等。
例如,He was not a teacher ten years ago.
十年前,他不是一名老師。
。2)was與動(dòng)詞ing形式構(gòu)成復(fù)合謂語(yǔ),表示過去進(jìn)行時(shí)態(tài)。
he was not reading a book.
他當(dāng)時(shí)沒有在讀書。
。3)was和動(dòng)詞過去分詞構(gòu)成復(fù)合謂語(yǔ),表示被動(dòng)語(yǔ)態(tài)。
The meeting was put off.
會(huì)議沒有被推遲。
did not是do not的.過去式,可以縮寫為didn't,常用作一般過去時(shí)態(tài)的句子中,“幫助”實(shí)義動(dòng)詞完成疑問句或否定句。
He did not have breakfast this morning.
他今天早晨沒吃早餐。
Didn't you watchTV last night?