许多语法大家都指出let不可以用于被动语态。现举出一些实用例句加以反驳：

I think the moral of the story is let the buyer beware

我想这个故事的寓意是提醒购物者当心。

Sadly, the film is let down by an excessively simple plot.

遗憾的是，过于简单的情节使得这部电影差强人意。

Trainees go through a four-hour lesson before they are let loose on the controls.

受训人员须上4小时的课才能自由进行操作。

Many caravans are let by private individuals through adverts in papers or shop windows.

许多旅行拖车由私人通过在报纸或商店橱窗上做广告出租。

But then to be let down like that, oh it's so unfair!

但是接下来竟让人如此失望，唉，这真不公平！

The cabin looked as if a maniac had been let loose there.

小屋看上去像是被疯子在那撒过野一样。

It has been let at an annual rental of 393,000.

它以每年39.3万英镑的价格被租了出去。

He has not yet been let in on the bad news.

他还不知道这个不幸的消息。

Peterson was let go after less than two years.

不到两年彼得森就被解雇了。以上9例摘自《柯林斯高阶英汉双解学习词典》

The house has been let out.

房子已租出去了。

He was let out of prison.

他被释放出狱。

Who occupied this house before it was let to us?

这所房屋租给我们以前是谁住的？以上3例摘自《汉英大词典》

The cat wants to be let out.

那只猫想要出去。《牛津高阶英汉双解词典》

The child was let (to) do it. 这孩子被允许去做那件事。《新英汉词典》

The grass was let grow.

让草长起来。（GCE）

The grass has been let (to) grow.

让草长了起来。(LDCE)