was 和 were 是 be 动词的一般过去时形式。 I/he/she/it 要用 was，you/we/they 要用 were。

I was at school this morning. 我今天早上在学校。 You were absent yesterday. 你昨天缺席。 She was happy at the concert. 她在演唱会上很开心。 We were excited after the game. 我们在比赛之后很兴奋。 Were they at school? 他们在学校吗?

否定句 was not 和 were not 的缩写为 wasn’t 和 weren’t，但是肯定句 was 和 were 没有缩写的形式。

He was sad, but she wasn’t very sad. 他很伤心，但她没有很伤心。  Sarah and Amber were hungry, but we weren’t hungry. Sarah和Amber很饿，但我们不饿。

Was/were 是 am/is/are 的过去式形式。现在式: am/is 等于过去式: was，现在式: are 等于过去式: were。

I’m sad. -> I was sad. 我很难过。 She is at school.-> she was at school. 她在学校。 You are slow. -> You were slow. 你很慢。

was/were 表示过去。通常会加上过去时间: yesterday, last night, last week, two months ago 等。

He was in Europe last winter. 他去年冬天在欧洲。 You were late to school yesterday. 他们昨天上学迟到。

在表达出生 born 时的 be 动词要用was/were。 be 动词加 born 只有过去式的形式: was/were born。

 “When were you born?” “I was born in 1999.” “你何时出生?” “我出生于1999年。”