happen前面可以加be动词吗
happen一般现在时,一般过去时,和单三？
happen一般现在时,一般过去时,和单三？
一般现在时： I happen to be an aficionado of the opera, and I love art museums 碰巧我是个歌剧迷，而且我爱去艺术博物馆。
一般过去时： We happened to discover we had a friend in common 我们凑巧发现我们有一个共同的朋友。
单三：If it happens that Im wanted badly somewhere, my mother will take the call and phone through to me here. 如果凑巧有人着急找我，我母亲会接电话，然后再打电话到这里转告我。
happen有进行时态吗？
happen有进行时态但是不可用于被动语态。
例如：It is happening as we speak.（现在进行时）
happen 英[hpn] 美[hpn]
vi. 发生; 出现; 碰巧; 偶然遇到;
[例句]
1、We cannot say for sure what will happen.
我们无法确定会发生什么事。
2、She wondered what would happen if her parents found her.
她不知道如果父母找到自己会有什么结果。
3、If we had been spotted at that point, I dont know what would have happened to us.
如果当时我们被发现了，我不知道会有什么后果。
4、We happened to discover we had a friend in common.
我们凑巧发现我们有一个共同的朋友。
5、She called Amy to see if she had any idea of her sons whereabouts. As it happened, Amy had.
她打电话给埃米，看她是否知道自己儿子的行踪。埃米还真就知道。