Some formal & informal expressions

                             

Informal expressions:
Formal expressions:
 
What did she write about?  
About what did she write?
 
I am supposed to 
call him.  Aren’t I? 
 Am I not?
 
None of the girls 
are present.
 None of the girls is present.
 
There is a book and a pen 
on the table 
There are a book and a pen on the table.
 
Somebody lost their book 
 Somebody lost his book
 
The public was friendly. 
They were very happy. 

It was composed 
of thousands of people. 
The public were friendly. They clap their hands.
 
You can call me 
at midnight. 
(Giving permission)
You may call me at night. 

(Giving permission)
 
It is fun reading this book. 
 Reading this book is fun.
 
It is fun reading this book. 
 It is fun to read this book.
 
He expected less students.
 He expected fewer students.
 
If I was you.
 If I were you.
 
She looks like she dances. 
(like is followed 
by a 
noun object)
She looks as if / as though she dances.