2023年初中英语知识点：助动词have(has, had, having)的用法

助动词have(has, had, having)的用法

(1)助动词have可以构成完成时或完成进行时

He has been a doctor for 10 years.他当医生十年了。This is the place I have been longing to visit.这就是我一直渴望参观的地方。

(2)和不定式构成谓语，表示客观上不得不做的事情。We've missed the train. We'll have to wait for another one.我们己经误了火车，我们只能等下一列。

-Do we have to start work?我们得立刻工作吗?

-No. We don't have to.不，不必了。

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