have/həv]əv]v]hæv/ (had，had；has)

aux v

1. [加过去分词，构成完成时态] 已经，曾经

• I have read the book. 我已经读过这本书了。

• He said he had seen her before. 他说他以前曾见过她。

• I shall have done it by the end of the month. 我将在月底前完成这件事。

• Having thought it over, I decided not to accept the job. 经过仔细考虑，我决定不接受这份工作。

2. [用于虚拟语气]

• If I had known(或Had I known )the news, I would have told you. 我要是早知道这个消息就会告诉你的。

词组had better (或best) 最好，应该

• You'd better consider it more seriously. 你最好认真考虑一下这件事。

have had it 口

1. (如某人做某事将)有麻烦

• Go any farther and you've had it. 你再往前走一点试试。

2. 累了

• Let's have a rest - I've had it. 休息一下吧，我累了。

3. 已经坏(或无用)了

• The old computer's had it - we should buy a new one. 这台旧电脑不行了，我们该买台新的了。