陳思's 心英文法---英文心法

主動改被動：主詞變受詞，受詞變主詞，受詞(人)之前加by。

直述句主動改被動

現在式→現在被動式：(V) → (be + P.P.)

(主動) I love you.

(被動) You are loved by me.

過去式→過去被動式：(Ved) → (was/were + P.P.)

(主動) I studied English yesterday.

(被動) English was studied by me yesterday.

未來式→未來被動式：(will/shall/can…+V) → (will/shall/can…+ be + P.P.)

(主動) I will do my homework tomorrow.

(被動) My homework will be done by me tomorrow.

現在進行式→現在進行被動式：(be +V-ing) → (be + being + P.P.)

(主動) I am using a computer.

(被動) A computer is being used by me.

現在完成式→現在完成被動式：(have/has + P.P.) → (have/has + been+ P.P.)

(主動) The man has repeated the same story several times.

(被動) The same story has been repeated by the man several times.

疑問句主動改被動

現在式疑問→現在疑問被動式：

(主動) Do you love me?

(被動) Am I loved by you?

過去式疑問→過去疑問被動式：

(主動) Did he tell you the truth?

(被動) Were you told the truth by him?

(被動) Was the truth told to you by him?

未來式疑問→未來疑問被動式：

(主動) Will he give you the money?

(被動) Will you be given the money by him?

(被動) Will the money be given to you by him?

現在進行式疑問→現在進行疑問被動式：

(主動) Is he studying English?

(被動) Is English being studied by him?

現在完成式疑問→現在完成疑問被動式：

(主動) Have you finished your assignment?

(被動) Has your assignment been finished (by you)?

受詞疑問句→被動式疑問：

(主動) What did he do?

(被動) What was done by him?

(主動) What have you done?

(被動) What has been done by you?

主詞疑問句→被動式疑問：

(主動) Who did it?

(被動) By whom was it done?

(主動) Who could have done this?

(被動) By whom could this have been done?

            By who could this have been done? (誤--By之後只可用 whom )