Question

Change into passive (iii) You do not help me.

Answer 1

Question:

You donot help me.

Answer :

I am not helped (by you).

Answer 2

the sentence 'You do not help me.' is simple present and is in negative form because it has 'not'.

Now, I negative sentence,

Active form of sentence  

⇒ Subject + do/does + not + first form of the verb + object

The subject ⇒ you

Verb ⇒ help

Object ⇒ me

So, The Passive form of the sentence will be  

⇒ Object + is/am/are + not + third form of the verb + by + subject

The answer -$\boxed{\bf I\:\:am\:\:not\:\: helped\:\:by \:\:you.}$    

The third form of the verb 'help' is 'helped'.