I want to make negative sentences from positive sentences. For example:
If I had a car ..., I would ... ← positive
If I had not a car, I would ... ← negative
But I'm not sure about it would be correct edited as well?
Also what is the difference between these two negative sentences?
If I had not a car, I would ...
If I did not have a car, I would ...
And is there any other option to another expression?
Edit: I do not just tell about question and positive, negative structure grammar.