Sir,I didn't understand
Awal doesn't have a car.
For example: You don't have a mobile.
Reetu doesn't have a mobile ना कि
Reetu doesn't has a mobile.(This is incorrect)
I mean, "Third Person Singular Subject" के साथ Doesn't have
और बाकी के साथ Don't have ना कि Doesn't has (This is incorrect).