happen有过去式吗？没有被动语态是吧？能帮我举几个例子吗？

happen有过去式，是happened。 它是不及物动词，没有被动语态。

如：The story happened in 1601.

What happened then？这句话不能说What was happened then？

在这里What 做主语，这是一个主谓结构。

1.发生

The accident happened outside my house.

这个事故发生在我家房子的外面。

2.（与to连用）碰巧,巧遇

I happened to be in the market yesterday when a fire started.

昨天发生火灾时，我正好在市场上。

I happened to see Peter on the way to the bookstore yesterday.

昨天我去书店的路上碰巧遇见了彼得。

3.（与on, upon连用）偶然发现

I happened on an old country hotel during the last summer holidays.

去年暑假期间我偶然发现了一家古老的乡村旅馆。

4.happen to．．．临到某人头上

Did you hear what happened to David last night?

你听说大卫昨天晚上发生什么事了吗?

happen to:

vt. 发生(碰巧,正巧,偶然)

例句与用法:

1. It can happen to anyone.

这事可能发生在任何人身上。

2. Should you happen to see him, please give him my regards.

如果你碰巧见到他，请代我向他致意。

3. I happen to have the official statistics with me.

我碰巧身边有官方的统计数字。

4. It's ok. that can happen to the best of us.

没有关系。 谁都会发生这种事。

5. Do you happen to know his new telephone number?

你可知道他的新电话号码?

6. It could happen to anybody.

这种事谁都难免。

7. We happen to hold the same view.

我们两人的想法不谋而合。

8. How could this happen to me!

我怎么会遇到这种事啊!

happen on:

vt. 偶然碰到(偶然发现)

例句与用法:

1. I happened on just the thing I'd been looking for.

我偶然发现了我一直在寻找的东西。

2. My wife happened on this old photograph in the back of the drawer.

我太太在抽屉靠里的一面偶然发现了这张过去的照片

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