I don't have to wash the dishes after the dinner.这句话有什么错,怎么改?

I don't have to wash the dishes after the dinner.这句话有什么错,怎么改?
I don't have to wash the dishes after the dinner.这句话有什么错,怎么改?

I don't have to wash the dishes after the dinner.这句话有什么错,怎么改?
I don't have to wash dishes after dinner.
去掉两个定冠词the,意思是：晚饭后我不必洗碗.

实在看不出有什么错，不过在情感上，我个人感觉改成：
I don't need to wash the dishes after the dinner.