Correct

上辈子

/ shàngbèizi /
Strokes

Definition

one's ancestors/past generations/a former incarnation

Example

As a Noun

ancestors; forefathers

1
men
我们
jiā
shàngbèizi
上辈子
zài
míng
明末
cóng
shān
山西
qiān
dào
shǎn
陕西
  

My ancestors moved from Shanxi to Shaanxi in the late Ming Dynasty.

As a Noun

previous life

2
Shàngbèizi
上辈子
zàoniè
造孽
  
,
xiàbèizi
下辈子
zāo
bàoyìng
报应
  

If one does evil, one will suffer a retribution in the next life.