| 陈述句 | 否定句 be + not+ done | 疑问句 be 提前 |
|---|---|---|
| The letter was sent out. | The letter was not sent out. | Was the letter sent out? |
| The room was cleaned. | The room was not cleaned. | Was the room cleaned? |
- This seat is taken. 这位置有人了
- The tea is served. 茶已经准备好了
- Your coffee is served. 你的咖啡已备好
- Lost time is never found again. 岁月流逝，一去不返。
- A liar is not believed when he speaks the truth. 说谎者即使讲真话也没人相信。
- Rome is not built in a day. 冰冻三尺非一日之寒。