I don't know this. No news is good news.
There is no person /not a person/not any person in the house.
He went to his office, not to see him.
I am sorry for not coming on time.
I don't think/believe/suppose/feel/imagine you are right.
I don't know all of them.
I can't see everybody/everything.
All the answers are not right.（并非所有答案都对。）
All is not gold that glitters. （闪光的不一定都是金子。）
Both of them are not right.（并非两人都对。）
None of my friends smoke.
I can see nothing/nobody.
Nothing can be so simple as this.
Neither of them is right.
You didn't see him, neither/nor did I.
You don't know, I don't know either.
He doesn't know English, let alone/to say nothing of/not to speak of French.
We seldom/hardly/scarcely/barely hear such fine singing.
I know little English.
I saw few people.
You can't make something out of nothing.
What's done cannot be undone.
There is no sweet without sweat.
No gain without pains.
I can't help /keep/ laughing whenever I hear it.
No man is so old but (that) he can learn.
Everyone is ready except you.
He did nothing but play.
But for your help, I couldn't do it.
I won't do it at all.
I can't see it any more.
He is no longer a boy