used for forming the perfect tenses of verbs. The perfect tenses are used for talking about what happened or began before now or another point in time (用来构成动词的完成时态) Has anybody seen Dave this afternoon? 今天下午有人见到戴夫了吗?
I've been looking for you everywhere. 我正到处找你。
She hadn't eaten anything for three days. 她已经3天没吃东西了。
‘Has Jerry done his homework?' ‘No, he hasn't.' “杰里的作业做完了吗?”“还没有。”
‘Have you washed your hands?' ‘Of course I have.' “手洗了吗?”“当然洗了。”
We didn't get a chance to talk to her, but I wish we had. 我们当时没有机会跟她谈,要是有机会就好了。
Young Benson's done very well, hasn't he? 小本森干得很好,是吧?
So, you've decided to join the party, have you? 那么,你已经决定参加聚会了,是吗?
Synonyms and related words