一般现在时,主动:1、am,is,are 2、动词用原形,单三要+s或es 被动:am,is,are+动词的过去分词(ved) 一般过去时,主:1、was,were 2、动词的过去式 被:was,were+ved 一般将来时,主:will,shall+动词原形 被:will,shall+be+ved 现在进行时,主:am,is,are+动词的现在分词 被:am,is,are+being+ved 过去进行时,主:was,were+动词的现在分词 被:was,were+being+ved 现在完成时,主:have,has+动词的过去分词 被:have,has+been+ved 还有一些情况不能同被动语态的: 1. 处担边杆装访膘诗博涧不及物动词不能用于被动语态。例如: 【误】 The story was happened in London. 【正】 The story happened in London. 2. 表示状态的动词,如have, cost, fit, last, own, hold, become等往往不能用于被动语态。例如: 【误】 He is fitted very well by the shirt. 【正】 The shirt fits him very well. 3. 某些“不及物动词 + 介词”型的短语动词,如listen to, walk into, fall off等,往往不使用被动语态。例如: 【误】 The room was walked into by him. 【正】 He walked into the room. 4. 祈使句一般没有被动语态。例如: 【误】 The blackboard is looked at by you. 【正】 Look at the blackboard, please. 5. 主语和宾语所指的对象相同时不能用于被动语态。例如: 【误】 Each other must be helped by us. 【正】 We must help each other. 6. 某些及物动词的宾语表示处所、地点、组织时不能用于被动语态。例如: 【误】 The League was joined by him in 1998. 【正】 He joined the League in 1998. 7. 动词不定式或