happen可以用进行时吗?比如说..was happening?

happen可以用进行时吗?比如说..was happening? happen 用被动式吗?happen用进行式吗? what is happening 发生,有这个表达么?happen 可以用进行时么?这句话咋翻译 What (happen)in the Disneylang at this time yesterday?是用过去进行时吗? will be doing后必须加延续性动词吗比如说：你知道他们下周多会儿离开这里吗?用将来进行时怎么说?可以用leave吗? 请问:用现在分词做伴随状语时,主句可以用现在进行时吗?比如说:She is sitting on a chair,reading a book. happen有过去进行时吗?不是说它非延续动词吗?老师说可以,我觉得不可以啊. what was happening to the boy when you saw him yesterday这句话对吗? happen能用进行时吗?I read newspapers every day to keep myself informed of what is happening in the world.这个句子正在发生的事用的是HAPPEN的进行时,不是不能用进行时吗?怎么解释呢? happen的现在进行时要不要双写N happen能用现在进行时或被动语态吗 什么情况下用happen 的进行时时态? 10个1W的照明LED灯串联,可以用大功率的开关电源供电吗,比如说30v20A的开关电源. 诗歌题目用标点可以吗?比如说? happen to ,happen 怎么用? What's that noise?What (is happening)?请问这里happen为什么要用现在进行时呢? happen有过去进行时吗如题. She was it happen when she was walking past.(她路过时看到事情的发生was it happen 属于什么用法?为什么可以这样用? what do you think will happen可以这么说吗 do you think what will happen?