有無人可以教我一Ｄ英文文法呀？

is,am are(be)係VERB

he,she,it,i,we,they,you係SUBJECT

一個簡單的句子SENTENCE係SUBJECT +VERB
eg.I cried.

當然句子SENTENCE也可SUBJECT +VERB +OBJECT
eg.I play a football.

is,am are(be)
he,she,it,i,we,they,you的eg
eg.I am a girl.
She is a girl
He is a boy.
They are students.
You are police.
It is a dog.
We are friends.

He is
She is
It is
I am
You are
We are
They are
You(plural) are
Those are
These are