英语中动词的基本形式：【现在式】【过去式】【现在分词】【过去分词】
大多数动词都有四种基本形式：现在式、过去式、现在分词、过去分词。按照动词各种形式构成方法，动词可分为规则动词和不规则动词两种类型。
1、规则动词的基本形式 规则动词的过去式和过去分词一般在动词原形后面加词尾【-ed】构成，现在分词则是加词尾【-ing】构成。 规则动词的四种基本形式及构成规则列表如下： |
| 构成规则 | 现在式 | 过去式 | 过去分词 | 现在分词 | |
动词过去式和过去分词加—ed； | work | worked | worked | working | |
动词结尾是e，过去式和过去分词加-d; | live hope | lived hoped | lived hoped | living hoping | |
| 动词词尾是重读闭音节，先双写辅音字母，再加-ed或者-ing | plan stop | planned stopped | planned stopeed | planning stopping | |
| 动词结尾是辅音字母+y，过去式和过去分词将y改为i，再加-ed;现在分词直接加-ing | study cry | studied cried | studied cried | studying crying | |
2、不规则动词的基本形式 不规则动词的现在分词的构成和规则动词一样，而过去式和过去分词的构成则比较复杂，需要在学习的时候不断的记忆积累。 现在讲不规则动词简单分类，他们的现在式（动词原形），过去式和过去分词见下表： |
| 说明 | 现在式 | 过去式 | 过去分词 |
| 三种形式都相同 | cut shut spread cost hit hurt | cut shut spread cost hit hurt | cut shut spread cost hit hurt |
| 过去式和过去分词相同，词尾加t | mean learn | meant learnt | meant learnt |
| 过去式和过去分词相同，词尾发生变化 | have make spend bulid | had made spent bulit | had made spent bulit |
| 过去式和过去分词相同，改变元音 | dig get lead meet shoot hold | dug got led met shot held | dug got led met shot held |
| 过去式和过去分词相同，改变元音，词尾加t | sleep feel keep leave fight | slept felt kept left fought | slept felt kept left fought |
| 过去式和过去分词相同 | bring buy think catch teach sell find | brought bought thought caught taught sold found | brought bought thought caught taught sold found |
| 现在式和过去式或过去分词 | run come become beat | ran came became beat | run come become beaten |
| 三种不同，改变元音 | swim sing drink begin | swam sang drank began | swum sung drunk begun |
| 三种不同 | be eat give fall blow fly grow know throw choose drive speak rise write break | was,were ate gave fell blew flew grew knew threw chose drove spoke rose wrote broke | been eaten given fallen blown flown grown known thrown chosen driven spoken risen written broken |
参考资料：更多的不规则动词：http://www.jenglishj.com/h-nd-134-122_559.html
