高考问答龙凤店百度云:在英语里be的使用方法教我吧 谢谢了！
来源：百度文库 编辑：高考问答 时间：2024/05/05 21:06:56
我对动词be的了解很少请详细的教我吧 谢谢！
be指中文的“是”，分第一人称单数am,第3人称单数is,第一第二第三人称复数及第二人称单数are。I-am you/we/they-are he/she/it-is .be的过去式是was/were .
例：
I am a boy.
you are smart.
she is our teacher.
when I was a baby,I could sing.
where were you born.
缩写：
he is--he's
she is--she's
you are--you're
I am--I'm
it is--it's
we are--we're
here is--here's
there are--there're
is not--isn't......
（this is,am not 等不能缩写）