动词的变化
1、be动词。①肯定式：I was …;He/She/It was …;We/You/They were …②否定式：I was not…; He/She/It was not …;We/You/They were not…
2、work（实义动词）。①肯定式：I/He/She/It/We/You/They worked. ②否定式： I/He/She/It /We/You/They did not work.
疑问式和回答
be动词。1、Was i …? Yes,you were./No, you were not. 2、Were you …? Yes,i was./No,i was not. 3、Was he/she/it …? Yes,he/she/it was. No,he/she/it was not. 4、Werewe/you/they …? Yes,you/we/they were./No, you/we/they were not.
work（实义动词）。1、第一人称：Do i work? Yes, you did./No, you did not. 2、第二人称：Did you work? Yes,i did./No,i did not. 3、第三人称：①Did he/she/it work? Yes,he/she/it did. No,he/she/it did not. ②Did they work? Yes,they did./No,they did not.
动词过去式
一般在词尾加-ed。e.g.:walk——walked；look——looked；start——started
以不发音的e结尾加-d。e.g.:care——cared；live——lived；like——liked
辅音字母加y结尾变y为i加-ed。e.g.:carry——carried；satisfy——satisfied；supply——supplied，
重读闭音节的时候，双写词尾字母加-ed。e.g.:stop——stopped；plan——planned
不规则动词。e.g.:break——broke；catch——caught；see——saw
