English pronouns
Personal Pronoun - Subject
I
you
he/she/it
we
they
Personal Pronoun - Object
me
you
him/her/it
us
them

The personal pronoun is used to refer to someone or something already mentioned (he, she, it etc.), to refer to the person speaking (I, me etc.), or to the person listening (you).

FORM FUNCTION
First Person Pronoun    
singular
I
subject
 
me
object
plural
we
subject
 
us
object
Second Person Pronoun    
singular
you
subject
 
you
object
plural
you
subject
 
you
object
Third Person Pronoun    
singular
he,she,it
subject
 
him,her,it
object
plural
they
subject
 
them
object

 

I, me, he, she, him, her, you = a person
you, we, us = people
it = thing
they, them = things or people

Here are some simple examples:-

(Imagine where the book is.)

Hubby and I went shopping.
We bought a book.
We read it, and then I leant him the book.
He read the book, and then he leant the book to her.
She read it, but they stole the book from her.
The police arrested them.
They returned the book to us.
We leant the book to you.
You read it.

!Note

When you are writing in English "I" (first person singular) is always capitalised.