Correct

拿不准

/ ná bùzhǔn /
Strokes

Definition

in doubt/unsure of sth/unable to decide/indecisive

Example

As a Verb

be unsure/uncertain

1
zuìzhōng
最终
huì
jiàgěi
嫁给
wèi
  
,
shuí
zhǔn
  

It's anybody's guess who she'll eventually marry.

2
zhǔn
不准
gāi
gāi
gěi
shuō
zhè
jiàn
shì
  

I'm not sure whether I should tell you this.