1. be 动词的过去式 was / were am/ is＝ was are /were
例如 1. 现在式 He is busy now.
2. 过去式 He was busy then 那时他很忙。
例如 1.现在式 My parents are at home now。我的父母现在在家。
2.过去式My parents were at home yesterday.我的父母昨天在家
Be 动词(过去式)的否定句—-主词＋ was / were ＋not
例如 1. Mr brown was a vet 否定 Mr brown wasn’t a vet .
2.Joe and brian were in the living room at that time
否定 Joe and brian weren’t in the living room at that time ,
Be动词过去式的疑问句 was / were ＋ 主词
例如 1. wendy was in the seventh grade last year. Wendy去年读7年级。
疑问句 was wendy in the seventh grade last year?
例如 Were you a pianist? Piano 钢琴 pianist钢琴家。
Yes , I was. No. I wan’t
.2. 一般动词的过去式—-规则变化/ 不规则变化
规则变化—–ed d ld
原型动词字尾有＋ed helped spelled wanted needed
原型动词字尾有e ＋d loved dance——danced
原型动词为子音＋短母音＋ 子音——–重复字尾加ed 如 stopped planned (计划)
原型动词为子音有y 去y 加ied 如 study—studied cry—cried
不规则变化 如 eat — ate
Read（瑞得） — -read （瑞爱得）注意写法一样 读音不同
现在 I walk to school. Every day .
过去 I walked to school yesterday。
Mother goes to a supaermarket every morning .妈妈每天早上去超市。
过去式 Mother went to a supermarket yesterday morning .妈妈昨天早上去超市了。
主词为第三人称单数过去式不需加s 。 过去式是不分人称的。。。
一般动词（过去式）的否定句—–需用助动词 Did /Do
肯定句 主词 加 一般动词过去式
否定句 主词 加did not ＋ 动词原型
例如1. He called you last night 他昨天打给你电话了
否定 He didin’t call you last night 他昨天没有给你打电话。
例如2. My sister and I watched TV all day yesterday .我的姐姐和我昨天一天都在看电视。
否定 Mysister and I didn’t watch TV all day yesterday 我和我的姐姐昨天并非一天都在看电视。
Not —–all 并非—- didn’t ——all 并非
比较 否定句 （过去式）
Be 动词——- she was at home
She wasn’t at home .
一般动词—–she studied English
She didn’t study English .
肯定 ＋ 主词＋ 一般动词过去式
疑问句 Did ＋主词 ＋ 原型
例如1. His friends went to that movie last week 他的朋友们上周去看电影了。
疑问句 Did his friends go to that movie last week？
例如2. Grace wrote a letter to David . Grace .给david 写了一封信。
疑问句 Did Grace write a letter to David ?
Yes,she did No, she didn’t
Be 动词—He was sick
疑问句 Was he sick ? yes he was . No , he wan’t
一般动词 He did his homework did 是一般动词do 的过去式
疑问句 Did he do his homework.
注意 Do/does 现在 did 过去 有俩种身份
2. 它也是助动词 ＋原型