賓語從句的語序是陳述句語序,即連接代詞/副詞+主語+謂語+其他成分。即:連接代詞/副詞+陳述句語序。例句如下:I don't know what they are looking for.Could you tell me when the train will leave?

無論主句是陳述句還是疑問句,賓語從句都必須使用陳述語序,即“主句+連詞+賓語從句(主語+謂語+……)”句式。根據(jù)連接詞在從句中所擔(dān)任的不同成分,可分為以下四種:
1)連接詞+謂語。連接詞在從句中作主語。常見的連接詞有:who,what,which等。如:
Could you tell me who knows the answer,please?你能告訴我誰知道答案嗎?
The small children don't know what is in their stockings.這些小孩子不知道襪子里有什么東西。
2)連接詞+名詞+謂語。連接詞在從句中作主語的定語。常見的連接詞有:whose,what,which,how many,how much等。如:
He asked whose handwriting was the best in our class. 他問我們班上誰的書法最好。
The teacher asked us how many people there were in the room. 老師問我們房間里有多少人。
3)連接詞+主語+謂語。連接詞在從句中作賓語、狀語或表語。常見的連接詞有:who(m),what,which,how many,how much,when,why,how,where,if/whether(在句中不充當(dāng)任何成分)等。如:
He hasn't decided if he'll go on a trip to Wuxi. 他還沒決定是否去無錫旅行。