The structures 就是, 就好, 就行 and 就完了
The structures …就是 
, …就好 , …就行 and …就完了 are used to express a point of view or advice.
, …就好 , …就行 and …就完了 are used to express a point of view or advice.These structures indicate that all that needs to be done is an action that was mentioned before.
Pay attention
The structures …就是, …就好 and …就行 are often followed by the particle 了 .
.Scheme
action
就是
(了)
Examples
放在桌子就是
Just put it on the table
fàng zài zhuōzi jiù shì
顶多我们走回家就是了
At worst, we'll just go home
dǐng duō wǒmen zǒu huí jiā jiù shì le
Scheme
action
就好
(了)
Examples
圣诞节有爸爸在家就好了
It would be nice if Dad was home for Christmas
shèngdànjié yǒu bàba zài jiā jiù hǎo le
我要是乘出租车去就好了
I wish I could take a taxi
wǒ yàoshi chéng chūzūchē qù jiù hǎo le
Scheme
action
就行
(了)
Pay attention
When translating sentences with 就行, we can state the word "just" at the beginning of a sentences.
Examples
凭直觉行事就行
Just trust your intuition
píng zhíjué xíngshì jiù xíng
跟着我的引导就行了
Just follow my instructions
gēnzhe wǒ de yǐndǎo jiù xíng le
来上第一节课就行了
Just come to the first class
lái shàng dì yì jié kè jiù xíng le
Scheme
action
就完了
Pay attention
In these structures, 了 cannot be omitted.
This structure is rarely used.
Examples
我回她说没有水就完了
I'll just tell her that there was no water
wǒ huí tā shuō méi yǒu shuǐ jiù wán le