Correct

何不

/ hébù / 
Strokes

Definition

why not?/why not do (sth)?

Example

As an Adverb

[used in rhetorical questions to give advice, a suggestion, etc] why not

1
Yǒu
有
shíjiān
时间
hébù
何不
kànkan
看看
shū
书
  
?

Why not do some reading when you have time?

2
Jìrán
既然
lái
来
le
了
  
,
hébù
何不
duō
多
dāi
待
yīhuìr  
一会儿
  
?

Since you have come, why not stay a while longer?

3
Yǒu
有
kùnnan
困难
  
,
hébù
何不
zǎo
早
shuō
说
  
?

Why didn't you tell us your difficulties earlier?