They was a car in front of the house just now.的肯,否定句

问题描述:

They was a car in front of the house just now.的肯,否定句

本身已经是肯定句了呀
否定句
There wasn't a car in front of the house just now ?
一般疑问句
Was there a car in front of the house just now?

句子有误,原句应该是:There was a car in front of the house just now.
它本身就是肯定句.
其否定句为:There wasn't a car in front of the house just now.
其一般疑问句为:Was there a car in front of the house just now?