was finished是什么時態(tài)

　　一般過去時的句法結(jié)構(gòu)：

　　1、肯定形式

　　主語+動詞過去式+其它

　　例句：She came to help us in those days．

　　2、否定形態(tài)

　　主語+didn't +謂語動詞原形+其它

　　1.在行為動詞前加didn't，同時還原行為動詞

　　例句：I didn't know you like coffee.

　　3、一般疑問句

　�、貲id+主語+謂語動詞原形+其它

　�、赪as/Were+主語+表語

　　例句：Did you do homework?

　　4、特殊疑問句

　　特殊疑問詞+ did+主語+動詞原形+其它？

　　特殊疑問詞+was/were+物主代詞/...'s+sth.？

　　5、被動語態(tài)

　　主語 + was / were + 動詞的過去分詞