be 动词 和 通常动词的过去式

be 动词的过去式

过去时be 动词的动词表示过去时间中发生的状态

	如今式	过去式
be 动词	am is	was
	are	were

时间副词改变，动词也必须改变。
例如 1. 如今式 He is busy now.  
     2. 过去式 He was busy then 那时他很忙。

主语 + be 动词

主语	be 动词	例句
第一人称	was	I was boy
第二人称	were	you were my sons
第三人称 单数	was	He was my student

Be 动词的否认， was/were ＋ not

确定句  主词 ＋ was/were
否认句  主词 + was/were ＋ not
He was not a good baseball player.  He wasn'’t good baseball player

Be动词的疑问句

确定句  主词 ＋ was/were
疑问句  was/were ＋ 主词 + ...？
The girl was a junior high school student  这个女孩曾经是中学生。 Senior high school. 高中生
was the girl a junior high school student?

Be动词的疑问句回答

可用Yes、No回答，答句中的主词须用代名词

例如
Were you a pianist?  Piano 钢琴  pianist钢琴家。
Yes , I was. / No. I wan’t

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通常动词过去式

通常动词的过去式分为 规则变化 / 不规则变化，动词随着时态改变形态

规则变化:

• 原形动词--> 加ed
  • helped spelled wanted needed
    
• 原形动词字尾有e-->加d
  • loved danced
• 原形动词为子音+短母音+字音-->重复字尾加ed
  • stopped planned (计划)
• 原型动词为子音有y-->去y 加ied
  • study—studied cry—cried

不规则变化:

eat   ---   ate
Read（瑞得）---read （瑞爱得）
Ride---rode 
Come---came
Have ---had 
See- --saw
Go-----went 
Teach---taught
Give ---gave 
Take---took

主词 + 过去式动词

过去式的句子中，主词为第三人称==单数==时，过去式动词不加s或es

人称	单数	复数
第一人称	I liked dogs	we liked dogs
第二人称	You liked dogs	you liked dogs
第三人称	he ==liked== dogs	they ==liked== dogs

过去式动词的否认句

过去式动词的否认句，不可在通常动词后加 not 必须用助动词 did 且 以后必须是动词原形

确定句： 主词 + 过去式动词
否认句： 主词 ＋ did ＋ not ＋ 原型动词

例如
He called you last night 他昨天打给你电话了
否认  He didin’t call you last night 他昨天没有给你打电话。
例如
My sister and I watched TV all day yesterday .个人姐姐和我昨天一天都在看电视。
否认 Mysister and I didn’t watch TV all day yesterday 我和个人姐姐昨天并不是一天都在看电视。
Not all 并不是  didn't all 并不是


比较  否认句 （过去式）
Be 动词---- she was at home 
            She wasn’t at home .
通常动词----she studied English 
            She didn’t study English .

通常动词的疑问句

不能将通常动词放在主词前，必须用助动词did

确定句： 主词 + 通常动词过去式
疑问句： did + 主词 ＋ 原型动词

例如
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？

通常动词的疑问句回答

助动词did 开头的疑问句回答用 yes/no 以后用 主词+ did 回答

Does the little boy go to school. 这个小男孩已经上学了吗？
Yes he does / No, he doesn’t


比较------疑问句(过去式)
Be 动词---He was sick病
   疑问句 Was he sick ?  yes he was .  No , he wan’t 
通常动词 He did his homework    did 是通常动词do 的过去式    
   疑问句  Did he do his homework.
   
注意   
Do/does 如今  did 过去  有俩种身份
1. 它能够当通常动词 作的意思
2. 它也是助动词 ＋原型