版权声明：本文为博主原创文章，未经博主允许不得转载。 https://blog.csdn.net/CleverCode/article/details/85845152
1 一般过去式
1.1 形式
谓语动词变成过去式.
A 过去经常的状态：主语 + was/were
B过去的习惯动作：主语+did（过去式）
1.2 动词变化
1)一般情况+ed。call:called,air:aired
2)以字母e结尾+d。live:lived,love:loved
3)以辅元辅（汉堡堡结构），将辅音字母双写+ed。stop:stopped.
1.3 用法
1 发生在过去的事情,完全发生在过去与现在无关。
Mary and I talked about your book hours ago.
Mom was a student when he was ten years old.
注意：
She had a bodfriend.（过去有一个男朋友，现在没有了）
Tom was a student.（tom曾经是个学生，现在不是学生了）
1.4 否定/疑问
1.4.1 be
1 否定：加not
You were happy.
You were not happy.
2)疑问:be 动词提前
Were you happy?
1.3.2 实义动词did
1)否定:加入did not，动词还原
They had a meetting.
They did not have a meetting.
2疑问：借助did提前，动词还原
Did they have a meetting?