# Do + not

If you want to say something is not true with 'to do':
just add 'not' after the form of to do.

I do not | I don't
You do not | You don't
It does not | It doesn't
We do not | We don't
They do not | They don't

Note well:
He eats. He doesn't eat.
DO NOT add an 's' after 'eat': He eats. He doesn't eats.
That would be a double. So add the full form of the verb after don't/doesn't.
I don't sleep.
She doesn't walk. (not walks!!)
It doesn't sit.
Now do exercise 13 and 14 on page 36/37 in the workbook.