Formal Negation and Uncertainty

这个问题并非想象中那么简单。

zhè ge wèn tí bìng fēi xiǎng xiàng zhōng nà me jiǎn dān.

This problem is not as simple as imagined.

他的沉默并非同意。

tā de chén mò bìng fēi tóng yì.

His silence does not mean agreement.

这个问题并非想象中那么简单。

This problem is not as simple as imagined.

Use formal assumption-denial.

这并非事实，而是一种误解。

This is not fact, but a misunderstanding.

事实 is what the sentence denies.

这并非事实，而是一种误解。

This is not fact, but a misunderstanding.

误解 states the corrected category.

数据多，结论未必可靠。

More data does not necessarily make the conclusion reliable.

Weaken the expected conclusion.