不见得、绝不、无从、无须、无可、勿 for Formal Negatives

Pattern

不见得 / 绝不 / 无从 / 无须 / 无可 / 勿 + verb

Each adds a precise kind of “not”: not necessarily, absolutely not, no way to, no need to, nothing can, do not.

本次讲座免费，无须提前报名。

When to use 不见得、绝不、无从、无须、无可、勿 for Formal Negatives

不见得 means “not necessarily” and softly disagrees; it works in speech too and can even stand alone as a reply. 绝不 means “absolutely not, never” and shows a firm decision or rule.

贵的东西不见得就好。

Expensive things aren’t necessarily good.

无论遇到什么困难，我绝不放弃。

Whatever difficulties I meet, I will never give up.

资料都丢了，我们无从查起。

All the records are lost, so we have no way to look into it.

展厅内请勿拍照。

Please do not take photos in the exhibition hall.

Common traps

勿 is for notices and requests: write 请勿拍照, but in speech say 别拍照.
无须 means “no need”, 无从 means “no way”: don’t swap them.
无可 only works in set phrases like 无可替代; don’t attach it to any verb.

Targeted drill

Practice this exact pattern before moving on.

资料都丢了，我们查起

All the records are lost, so we have no way to look into it

wú cóng

Meanings

have no way to; not know where to

Fill in the missing piece, then press Enter

When to use 不见得、绝不、无从、无须、无可、勿 for Formal Negatives

Common traps

Targeted drill

Keep this pattern in review.