Verb To 'Do' (Do, Does & Did)

	'Do', 'Does', 'Did' are the three forms of the verb 'to do'.
	They are used to form questions.

Do	I  /  you  /  we  /  they	verb	..... ?
Does	he  /  she  /  it

They are also used to give short answers.

       Examples
       1. Does she like ice cream?
          Yes, she does.
       2. Do you like ice cream?
          Yes, I do.        
   

They are also used  to form sentences with 'not'.

I  /  You  /  We  /  They	do  not	verb	.....
He  /  She  /  It	does  not

　

With past simple verbs, 'Did' is used to form questions.

Did

I  /  you  /  we  /  they he  /  she  /  it

verb

..... ?

     

With past simple verbs, 'Did' is used to form sentences with 'not'.

I  /  You  /  We  /  They  He  /  She  /  It

did  not

verb

.....

　        Example : Did he go to school yesterday?
                      No, he did not go to school yesterday.