Correct

自是

/ zì shì /
Strokes

Example

As an Adverb

naturally; of course

1
子女
duō
  
,
shì
tuōlěi
拖累
  

Too many children are naturally a burden.

As a Verb

consider oneself (always) in the right; regard oneself as infallible; be opinionated

2
shì
yòu
wán
顽固
  

He is self-willed as well as opinionated.