一、Used to表示過去的習(xí)慣動(dòng)作或狀態(tài)，現(xiàn)在已不存在，在間接引語中，其形式可不變。如：
1.He told us he used to play football when he was young.
他告訴我們他年輕時(shí)經(jīng)常踢足球。
2.I weigh less than I used to.
我的體重比以前輕了。
3.He is used to eating out all the time.
他已經(jīng)習(xí)慣在外面吃飯了。
4.You'll get used to it.
你會(huì)習(xí)慣的。
5.Are you used to the food here?
你習(xí)慣吃這兒的飯菜嗎？
6.I used to get up early and take an hour's walk before breakfast.
我過去常常起床很早并且在早餐前散步一小時(shí)。
7.Women used to think they were on the shelf at 30.
過去女人一到30歲就認(rèn)為是過了結(jié)婚年齡。
8.Jack used to assist Mary in her lessons.
杰克過去常常幫助瑪麗學(xué)習(xí)功課。

二、在疑問句、否定句、否定疑問句或強(qiáng)調(diào)句中，可有兩種形式：
1、疑問句
Did you use to go to the same school as your brother?
Used you to go to the same school as your brother?
2、否定句
I usedn't to go there.
I didn't use to go there.
3、否定疑問句
Usen't you to be interested in the theatre?
Didn't you use to be interested in the theatre?
4、強(qiáng)調(diào)句
I certainly used to smoke,but it was a long time ago.
I certainly did use to smoke,but it was a long time ago.
5、其反意疑問句或簡(jiǎn)略回答中，也有兩種形式：
She used to be very fat,didn't she? （口語+常用）/ use(d)n't she? （正式+過時(shí)）
Did you use to play chess? Yes,I did.
Used you to get up early in the morning? Yes,I did. (Yes,I used to.)