英语中的be在什么时候用,在什么是不用be用am is are?请把所有的情况说清楚点,我现在搞得好乱啊!

英语中的be在什么时候用,在什么是不用be用am is are?请把所有的情况说清楚点,我现在搞得好乱啊!
英语中的be在什么时候用,在什么是不用be用am is are?
请把所有的情况说清楚点,我现在搞得好乱啊!

英语中的be在什么时候用,在什么是不用be用am is are?请把所有的情况说清楚点,我现在搞得好乱啊!
像will can must shall等情态动词后面接的都是动词原形,这时候就是用be 主语后面直接跟be的话就不用原形的be了,要用am is are 第一人称单数后面跟am

跟在情态动词后用be,不可用am,is,are
例：I should be a all-good student,so my mom will be pround of me.
例：He must be your mother.
例：Being the oldest sister in the family,i should set a excellent example ...

全部展开

跟在情态动词后用be,不可用am,is,are
例：I should be a all-good student,so my mom will be pround of me.
例：He must be your mother.
例：Being the oldest sister in the family,i should set a excellent example for my younger sisters to follow.
当am,is,are作是动词时，am是与I搭配，is是与第三人称he/she/it等单数搭配，are是与复数搭配
例：I am the best one in the class.
It is my turn to cook.
She is the one i will live together.
There is a picture on the wall.
They are friends.
There are many books on the desks.

收起

该用动词原形的时候
should be
may be
might be
to be
're gonna be