I用am;you用are,is连着他她它（he,she,it);名词单数用is,名词复数全用are变疑问，往前提，句末问号莫丢弃变否定，更容易，be后not莫忘记疑问否定任你变，句首大写莫迟疑，我来为大家科普一下关于be动词的用法口诀顺口溜读一下?下面希望有你要的答案，我们一起来看看吧!
be动词的用法口诀顺口溜读一下
I用am;you用are,is连着他她它（he,she,it);名词单数用is,名词复数全用are。变疑问，往前提，句末问号莫丢弃。变否定，更容易，be后not莫忘记。疑问否定任你变，句首大写莫迟疑。
例句
1.Tina is her sister.
2.His name is Lily.
3.What is your telephone number?
4.Are you Tina?
5.I am from Beijing.
6.These books aren't mine.They are Mary's.
7.You are a teacher and I am a doctor.
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